WO2011069226A1 - Appareil, procédé et système de maintien d'une prothèse dentaire - Google Patents
Appareil, procédé et système de maintien d'une prothèse dentaire Download PDFInfo
- Publication number
- WO2011069226A1 WO2011069226A1 PCT/CA2009/001798 CA2009001798W WO2011069226A1 WO 2011069226 A1 WO2011069226 A1 WO 2011069226A1 CA 2009001798 W CA2009001798 W CA 2009001798W WO 2011069226 A1 WO2011069226 A1 WO 2011069226A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- denture
- connector
- bone
- mouth
- patient
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 10
- 210000004872 soft tissue Anatomy 0.000 claims abstract description 20
- 210000000988 bone and bone Anatomy 0.000 claims description 85
- 230000002093 peripheral effect Effects 0.000 claims description 34
- 230000000295 complement effect Effects 0.000 claims description 20
- 230000013011 mating Effects 0.000 claims description 11
- 230000008468 bone growth Effects 0.000 claims 2
- 239000004053 dental implant Substances 0.000 description 95
- 238000010883 osseointegration Methods 0.000 description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 5
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000560 biocompatible material Substances 0.000 description 5
- 229910052719 titanium Inorganic materials 0.000 description 5
- 239000010936 titanium Substances 0.000 description 5
- 229910052726 zirconium Inorganic materials 0.000 description 5
- 230000001055 chewing effect Effects 0.000 description 4
- 239000007943 implant Substances 0.000 description 4
- 230000036528 appetite Effects 0.000 description 3
- 235000019789 appetite Nutrition 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 210000004283 incisor Anatomy 0.000 description 2
- 210000001847 jaw Anatomy 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000012858 resilient material Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 210000004873 upper jaw Anatomy 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 210000004763 bicuspid Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 210000003464 cuspid Anatomy 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 210000004373 mandible Anatomy 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000002050 maxilla Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/225—Fastening prostheses in the mouth
- A61C13/265—Sliding or snap attachments
- A61C13/2656—Snap attachments
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0093—Features of implants not otherwise provided for
- A61C8/0095—Total denture implant
Definitions
- a method of holding a denture having a denture connector in a mouth of a patient involves retaining the denture connector on a guiding portion of an elongate body affixed in the mouth of the patient, and guiding the denture connector in longitudinal movement along the guiding portion in response to a load on the denture to locate the denture connector in a position on the guiding portion that facilitates transfer of the load to soft tissue adjacent the apparatus in the mouth of the patient.
- Figure 1 is a fragmented cross-sectional view of a denture system in accordance with a first embodiment of the invention, in a separated arrangement
- Figure 2 is a cross-sectional view of the denture system of Figure 1 in the separated arrangement, taken along the line ll-ll in Figure 1
- Figure 3 is a fragmented cross-sectional view of the denture system of Figure
- Figure 4 is an elevation view of the dental implant shown in Figure 3,
- FIG. 5 is a plan view of the dental implant shown in Figure 3.
- Figure 6 is a side cross-sectional view of a dental implant in accordance with a second embodiment of the invention.
- Figure 9 is an elevation view of a dental implant in accordance with a fourth embodiment of the invention.
- Figure 10 is an elevation view of a dental implant in accordance with a fifth embodiment of the invention.
- Figure 11 is an elevation view of an abutment of the denture system of Figure 1 .
- Figure 12 is a side cross-sectional view of an abutment assembly in accordance with a sixth embodiment of the invention.
- Figure 13 is a fragmented cross-sectional view of the denture system of Figure
- the overdenture 102 includes a denture base 104 comprised of acrylic or methyl methacrylate, for example, and the denture base 104 includes lateral projections 101 and 103 that are shaped to define a channel 105 that fits over soft tissue (or gum tissue) 106 that surrounds bone 108 in the mouth of a patient.
- the bone 108 is a mandible or lower jaw bone from which natural teeth of the patient have been removed to allow the denture base 104 to fit in a complementary fashion over the soft tissue 106.
- the overdenture 102 includes prosthetic molars 110 and 112, prosthetic bicuspids 114 and 116, a prosthetic canine tooth 118, a prosthetic lateral incisor 120, and a prosthetic central incisor 121 secured to the denture base 104 to project away from the channel 105 to replace corresponding natural teeth of the patient.
- the overdenture may be formed to fit over a maxilla or upper jaw, and may include prosthetic teeth to replace natural maxillary or upper-jaw teeth.
- the overdenture may replace all of the upper or lower natural teeth in the mouth of a patient, or the overdenture may replace only certain natural teeth that have been removed.
- the first and second openings 131 and 133 are generally circular, the first and second cavities 134 and 136 are generally cylindrical, and the first and second openings 131 and 133 are axially aligned with the first and second cavities 134 and 136 respectively.
- the first and second cavities 134 and 136 are bounded by respective end surfaces 142 and 144 of the denture base 104.
- the denture base 104 includes first and second shoulder portions 139 and 141 , which surround the first and second openings 131 and 133 respectively and contact the first and second inserts 135 and 140 respectively.
- the first and second shoulder portions 139 and 141 facilitate holding the first and second denture connector assemblies 130 and 132 respectively in the first and second cavities 134 and 136 respectively.
- the insert 135 has an inner wall 137 having an inner diameter 143.
- the first opening 131 also has an inner diameter 146 approximately equal to the inner diameter 143.
- the inner wall 137 defines a groove 145, which holds a denture connector 138 in the first cavity 134.
- the denture connector 138 includes a compressible and resilient rubber ring (or O-ring). Alternatively, however, the denture connector 138 may include silicone or plastic or other resilient materials, for example.
- an inner surface 147 of the denture connector 138 has an uncompressed diameter 149, which is less than the inner diameter 143.
- the second denture connector assembly 132 substantially resembles the first denture connector assembly 130.
- the first dental implant 122 includes an elongate body shown generally at 150.
- the elongate body 150 has an affixing portion 152 for affixing the first dental implant 122 in the mouth of a patient, a denture engaging portion 154 for engaging the first denture connector assembly 130
- transition portion 153 disposed between the affixing portion 152 and the denture engaging portion 154.
- the affixing portion 152 is connected directly to the bone 108 (shown in Figures 1 to 3), and in this embodiment is made with an alloy including titanium or another biocompatible material such as zirconium, for example, to facilitate osseointegration with the bone (108).
- the affixing portion 152 includes a threaded portion 156 of the elongate body 150 for threadedly engaging the bone 108 (shown in Figures 1 to 3).
- the affixing portion 152 thus functions as a bone connector and is used to affix the first dental implant 122 in the mouth of a patient.
- the affixing portion 152 also includes a shoulder portion 158 adjacent the denture engaging portion 154.
- the first dental implant 122 in this embodiment is positioned in the bone 108 such that the shoulder portion 158 is submerged approximately one to two millimeters below a gum-contacting surface 160 of the bone 108 such that the bone 108 may grow over the shoulder portion 158 to retain the affixing portion 152 in the bone 108, particularly against longitudinal movement of the first dental implant 122 relative to the bone 108.
- This process may be referred to as "platform switching".
- platform switching advantageously strengthens the connection of the first dental implant 122 in the bone 108.
- the denture engaging portion 154 which may also be referred to as an "abutment portion" includes a guide 162 and a stop 164.
- the guide 162 in the embodiment shown is disposed adjacent the transition portion 153 and the stop 164 is disposed adjacent the guide 162.
- the guide 162 includes an elongate surface portion 175 on the elongate body 150.
- the elongate surface portion 175 has a first width 176 adjacent the stop 164, and a second width 177 adjacent the affixing portion 152.
- the first width 176 is less than the second width 177, such that the elongate surface portion 175 tapers inwardly in a direction away from the affixing portion 152.
- the stop 164 in the embodiment shown has an annular concaved stop surface 166 generally facing the guide 162, an end surface 168 generally opposite the stop surface 166, and a peripheral region 170 between the stop surface 166 and the end surface 168.
- the end surface 168 in this embodiment is gently curved convex, and forms a truncated spherical cap in the embodiment shown.
- the stop 164 has a diameter 172 defined by the peripheral region 170, and the end surface 168 rises a height 174 above the peripheral region 170. In the embodiment shown, the height 174 is less than half of the diameter 172.
- the peripheral region 170 in the embodiment shown also includes a peripheral torque transfer surface 178 which is generally hexagonal (or more generally, generally polygonal) in the embodiment shown. More particularly, the peripheral torque transfer surface 178 includes six generally planar faces 180, 182, 184, 186, 188, and 190, and six rounded edges 192, 194, 196, 198, 200, and 202.
- the rounded edges 192, 194, 196, 198, 200, and 202 advantageously avoid sharp edges between the generally planar faces, as such sharp edges could cause damage to tissue in the mouth, for example.
- the peripheral torque transfer surface 178 facilitates engagement by a tool (not shown) for applying a torque to the first dental implant 122 to cause the first dental implant 122 to rotate, thereby causing the threaded portion 156 to threadedly engage with the bone 108 (shown in Figures 1 to 3) to a desired depth in the bone (108).
- torque is applied to the peripheral torque transfer surface 178 until the shoulder portion 158 is approximately one to two millimetres below the gum-contacting surface 160 (shown in Figures 1 to 3) to facilitate platform switching as described above.
- a dental implant in accordance with a second embodiment of the invention is shown generally at 300.
- the dental implant 300 is substantially the same as the first dental implant 122, except that an end surface 302 of a stop 304 defines a recessed torque transfer surface 306.
- the recessed torque transfer surface 306 in the embodiment shown is centrally located and generally hexagonal (or more generally, generally polygonal) and includes six generally planar faces 308, 310, 312, 314, 316, and 318.
- dental implants may include one or both of a peripheral torque transfer surface (such as the peripheral torque transfer surface 178 shown in Figures 4 and 5) and a recessed torque transfer surface such as the recessed torque transfer surface
- the recessed torque transfer surface 306 facilitates engagement by a tool (not shown) to accomplish substantially the same functions as the peripheral torque transfer surface (178).
- the dental implant 210 includes an elongate body shown generally at 212.
- the elongate body 212 has an affixing portion 214 for affixing the dental implant 210 in the mouth of a patient, and a denture engaging portion (or "abutment portion") 216 for engaging a denture such as the overdenture 102 (shown in Figure 1).
- the denture engaging portion 216 is substantially the same as the denture engaging portion 154 shown in Figure 4.
- the dental implant 210 may additionally or alternatively include a recessed torque transfer (such as the recessed torque transfer surface 306 shown in Figures 6 and 7).
- the denture engaging portion 216 may not include any torque transfer surface, as the dental implant 210 may be positioned in bone by applying an axial force to the dental implant 210 without necessarily applying any torque.
- the denture engaging portion 216 may instead include a smooth peripheral region around the stop.
- the affixing portion 214 has a shape similar to that of the affixing portion 152 (shown in Figure 4), although in this embodiment the affixing portion 214 includes a wedge portion 218 of the elongate body 212 for connecting directly to bone (such as the bone 108 shown in Figures 1 to 3) by frictionally engaging the bone.
- the wedge portion 218 in this embodiment is made with an alloy including titanium or another biocompatible material such as zirconium, for example, and may be coated with hydroxyl appetite (not shown) to produce a rougher surface, or the surface of the wedge portion 218 may otherwise be roughened.
- the affixing portion 214 includes a shoulder portion 220 adjacent the denture engaging portion 216 to facilitate platform switching as described above.
- the affixing portion 214 thus functions as a bone connector and is used to affix the dental implant 210 in the mouth of a patient.
- a denture engaging portion (or "abutment portion") 236 for engaging a denture such as the overdenture 102 (shown in Figure 1).
- the affixing portion 234 includes a wedge portion 238 of the elongate body 232 for connecting directly to bone in the mouth of a patient (such as the bone
- the wedge portion 238 in this embodiment is made with an alloy including titanium or another biocompatible material such as zirconium, for example, and may be coated with hydroxyl appetite (not shown) or otherwise roughened.
- the wedge portion 238 in this embodiment includes longitudinal projections (or "fins") 240 and 242 for engaging bone in the mouth of a patient (such as the bone 108 shown in Figures 1 to 3) to prevent rotation of the dental implant 230.
- Alternative embodiments may include one or more projections and recesses (such as grooves or indentations, for example) and the projections and/or recesses may be longitudinal, peripheral, or otherwise oriented to engage the bone and prevent movement of the dental implant 230 relative to the bone. Although two longitudinal projections 240 and 242 are shown, a greater or lesser number of projections and/or recesses may be used.
- the affixing portion 234 also includes a shoulder portion 244 adjacent the denture engaging portion 236 to facilitate platform switching as described above. The affixing portion 234 thus functions as a bone connector and is used to affix the dental implant 230 in the mouth of a patient.
- the denture engaging portion 236 is substantially the same as the denture engaging portions 154 (shown in Figure 4) and 216
- a dental implant in accordance with a fifth embodiment of the invention is shown generally at 330.
- the dental implant 330 includes an elongate body shown generally at 332.
- the elongate body 332 has an affixing portion 334 for affixing the dental implant 330 in the mouth of a patient, and a denture engaging portion (or "abutment portion") 336 for engaging a denture such as the overdenture 102 (shown in Figure 1 ).
- the denture engaging portion 336 is substantially the same as the denture engaging portion 154 shown in Figure 4. Again, only a peripheral torque transfer surface (such as the peripheral torque transfer surface 178 shown in Figures 4 and 5) is shown, although it will be appreciated that the dental implant 330 may additionally or alternatively include a recessed torque transfer surface (such as the recessed torque transfer surface 306 shown in Figures 6 and 7).
- the denture engaging portion 336 may not include any torque transfer surface, and may instead include a smooth peripheral region around the stop, particularly in embodiments where one or more projections or recesses are configured to prevent rotation of the dental implant relative to bone.
- the affixing portion 334 includes a generally cylindrical portion 338 of the elongate body 332 for connecting directly to bone in the mouth of a patient (such as the bone 108 shown in Figures 1 to 3) by frictionally engaging the bone.
- the affixing portion 334 also includes a rounded end portion 340.
- the affixing portion 334 in this embodiment is made with an alloy including titanium or another biocompatible material such as zirconium, for example, and may be coated with hydroxyl appetite (not shown) or otherwise roughened.
- the affixing portion 334 includes a shoulder portion 342 adjacent the denture engaging portion 336 to facilitate platform switching as described above.
- the affixing portion 334 thus functions as a bone connector and is used to affix the dental implant 330 in the mouth of a patient.
- the affixing portion 334 may further include one or more projections or recesses (such as the longitudinal projections 240 and 242 shown in Figure 9, for example), to prevent movement of the dental implant 330 relative to the bone.
- the first dental implant 122 (shown in Figures 3 to 5), and the dental implants 300 (shown in Figures 6 and 7), 210 (shown in Figure 8), 230 (shown in Figure 9), and 330 (shown in Figure 10), are, in those embodiments, unitary dental implants that directly engage bone, such as the bone 108 (shown in Figures 1 and 2), for example.
- the elongate body 250 has an affixing portion 252, which in this embodiment may be referred to as a "fixture connector", for connecting the abutment 128 to the fixture 126, which is attached directly to the bone 108 (as shown in Figure 1).
- the affixing portion 252 is thus used to affix the abutment 128 in the mouth of a patient.
- the affixing portion 252 includes a threaded portion 254 of the elongate body 250 for threadedly engaging a complementary portion 256 of the fixture 126.
- the affixing portion 252 also includes a mating surface, which in the embodiment shown includes a tapered portion 258 of the elongate body 250 for engaging a complementary receptacle 260 of the fixture 126.
- the tapered portion 258 of the elongate body 250 in the embodiment shown may be referred to as a "Morse taper", and the cooperation of the tapered portion 258 and the complementary receptacle 260 of the fixture 126 has been found to facilitate a secure connection between the affixing portion 252 of the abutment 128 to the fixture
- the abutment 128 also includes a denture engaging portion 262 that is substantially the same as the denture engaging portions 154 (shown in Figure 4), 216 (shown in Figure 8), 236 (shown in Figure 9), and 336 (shown in Figure 10) although again, a stop 263 of the denture engaging portion 262 may include one or both of a peripheral torque transfer surface such as the peripheral torque transfer surface 178 (shown in Figures 4 and 5) and a recessed torque transfer surface (such as the recessed torque transfer surface 306 shown in Figures 6 and 7).
- an abutment assembly in accordance with a sixth embodiment of the invention is shown generally at 350, and includes an abutment shown generally at 352 and a fastener shown generally at 360.
- the abutment 352 includes an elongate body that has an affixing portion 354 having a fixture end 370.
- the affixing portion 354 in the embodiment shown includes a mating surface 356 for contacting a complementary surface on a fixture, such as the complementary receptacle 260 of the fixture 126 shown in Figure 1 , for example.
- the mating surface 356 is a tapered portion that may be referred to as a "Morse taper" to facilitate a secure connection between the affixing portion 354 of the abutment 352 to the fixture.
- the mating surface 356 may have an internal or external polygonal cross-section, such as a triangular, square, or hexagonal cross- section, for example.
- the abutment 352 also includes a denture engaging portion 358 that is substantially the same as the denture engaging portions 154 (shown in Figure 4), 216 (shown in Figure 8), 236 (shown in Figure 9), 336 (shown in Figure
- a stop 359 of the denture engaging portion 358 may not include any torque transfer surface, and may instead include a smooth peripheral region around the stop, as the fastener 360 facilitates holding the abutment 352 in a fixture (such as the fixture 126 shown in Figure 1 , for example).
- the abutment 352 defines a through-channel 362 for receiving the fastener 360.
- the fastener 360 includes a head 363 that defines a retaining surface 364 for contacting a complementary surface 366 of the abutment 352 in the through-channel 362.
- the retaining surface 364 contacts the complementary surface 366, and a threaded portion 368 of the fastener 360 protrudes through the fixture end 370 of the abutment 352.
- the threaded portion 368 is threadedly received in a complementary threaded portion of a fixture (such as the complementary portion 256 of the fixture 126 shown in Figure 1 , for example), thereby holding the mating surface 356 against a complementary surface of the fixture (such as the complementary receptacle 260 of the fixture 126 shown in Figure 1 , for example).
- the affixing portion 354 is thus used to affix the abutment 352 in the mouth of a patient.
- Unitary dental implants such as the first dental implant 122 (shown in Figures 3 to 5), and the dental implants 300 (shown in Figures 6 and 7), 210 (shown in
- a two-piece dental implant such as the second dental implant 124 (shown in Figure 1) generally has a maximal diameter of its bone-engaging portion (shown at 264 in Figure 1) of greater than about three millimetres.
- Unitary dental implants such as the first dental implant 122 may thus be referred to as "minis".
- a suitable dental implant will have a bone- engaging portion having a maximal diameter that leaves at least about two millimeters of bone surrounding the bone-engaging portion. Therefore, unitary dental implants are more frequently used in regions of a mouth where bone is generally relatively narrow and deep, whereas two-piece dental implants such as the second dental implant 124 may be more suitable for use in regions of a mouth where bone is generally relatively thick and shallow.
- bone width in the mouth of a patient is known to diminish over time in regions of the mouth where natural teeth are missing, and thus narrower unitary dental implants such as the first dental implant 122, for example, may be more frequently used in such regions.
- FIG. 1 shows the denture system 100 in a separated arrangement, wherein the denture base 104 is spaced apart from the soft tissue 106, and the first and second dental implants 122 and 124 are not received in the first and second cavities 134 and 136.
- Figure 13 shows the denture system 100 in an assembled arrangement. In the assembled arrangement, the soft tissue 106 is received within the channel 105 (shown in Figure 1), the denture base 104 is seated against the soft tissue 106, the denture engaging portion 154 of the first dental implant 122 is received within the first cavity 134, and the denture engaging portion 262 of the second dental implant 124 is received within the second cavity 136.
- a mixture of different types of dental implants may be used in the mouth of one patient, depending upon the thickness and depth of available bone, for example, at various locations the mouth of the patient.
- the second denture connector assembly 132 substantially resembles the first denture connector assembly 130, and the denture engaging portion 262 of the second dental implant 124 is substantially the same as the denture engaging portion 154 of the first dental implant 122. Therefore, for simplicity, the functions of the first denture connector assembly 130 and the denture engaging portion 154 of the first dental implant 122 are described below, although it will be appreciated that the second denture connector assembly
- the diameter 172 of the stop 164 is less than the inner diameter 146 of the first opening 131 , and less than the inner diameter 143 of the inner wall 137, so that the stop 164 can pass through the first opening 131 and into the first cavity 134, as shown in Figure 13.
- the overdenture 102 is positioned in the mouth of a patient as shown in Figure 1 , such that the first dental implant 122 is generally aligned with the first opening 131 , and the denture engaging portion 262 of the second dental implant 124 is generally aligned with the second opening 133.
- the overdenture 102 is then pressed onto the soft tissue 106 such that the denture engaging portion 154 of the first dental implant 122 is received within the first cavity 134, and the denture engaging portion 262 of the second dental implant 124 is received within the second cavity 136.
- the denture connector 138 in response to an increase in force on the overdenture 102 towards the soft tissue 106, the denture connector 138 is urged against the convex end surface 168, which bears on the inner surface 147 of the denture connector 138.
- This force on the overdenture 102 causes the convex end surface 168 to deform the resilient denture connector 138, expanding the inner surface 147 from the uncompressed diameter 149 to at least the diameter 172 of the stop 164, thus urging the denture connector 138 over the peripheral region 170.
- the convex shape for the end surface 168 thus advantageously facilitates positioning the denture connector 138 in the retained position on the guide 162.
- the denture connector 138 includes a resilient ring, it will be appreciated that alternatively, the denture connector
- the denture connector 138 can move longitudinally along the elongate body 150, at least a greater portion of load on the overdenture 102 is transferred to the soft tissue 106 instead of to the first dental implant 122, when compared to other dental implants that hold a guide in a fixed longitudinal position relative to the dental implant.
- the overdenture 102 may therefore be referred to as a "soft-tissue- supported overdenture".
- a reduced load also known as "vertical load”
- the first denture connector assembly 130 in the embodiment shown includes sufficient clearance above the end surface 168 to avoid such contact.
- a gently curved convex end surface 168 allows for reduced clearance within the first denture connector assembly 130 when compared to some known O-ring abutments, and reducing this clearance advantageously increases thickness and strength of the denture base 104, enabling a stronger overdenture 102.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dental Prosthetics (AREA)
Abstract
La présente invention concerne un appareil qui comporte un élément de liaison de prothèse et permet de maintenir une prothèse dentaire dans la bouche d'un patient. Ledit appareil comprend un corps allongé doté de moyens d'apposition, qui permettent d'apposer l'appareil dans la bouche du patient, et de moyens de mise en contact avec la prothèse destinés à venir en contact avec ladite prothèse. Lesdits moyens de mise en contact avec la prothèse comprennent des moyens de guidage destinés à guider l'élément de liaison de prothèse dans un mouvement longitudinal le long du corps allongé. Ces moyens de guidage sont dimensionnés pour permettre à l'élément de liaison de prothèse de se déplacer et d'être guidé dans un mouvement longitudinal le long du corps allongé en réponse à une charge pesant sur la prothèse; ceci permet de placer l'élément de liaison de prothèse dans une position qui facilite le transfert de la charge sur la partie molle adjacente à l'appareil dans la bouche du patient, et réduit la charge verticale pesant sur l'appareil. Le corps allongé possède également des moyens de retenue destinés à accueillir et à retenir l'élément de liaison de prothèse sur les moyens de guidage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/CA2009/001798 WO2011069226A1 (fr) | 2009-12-11 | 2009-12-11 | Appareil, procédé et système de maintien d'une prothèse dentaire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/CA2009/001798 WO2011069226A1 (fr) | 2009-12-11 | 2009-12-11 | Appareil, procédé et système de maintien d'une prothèse dentaire |
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WO2011069226A1 true WO2011069226A1 (fr) | 2011-06-16 |
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PCT/CA2009/001798 WO2011069226A1 (fr) | 2009-12-11 | 2009-12-11 | Appareil, procédé et système de maintien d'une prothèse dentaire |
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WO (1) | WO2011069226A1 (fr) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101311250B1 (ko) * | 2012-04-06 | 2013-09-27 | 김만용 | 틀니용 어태치먼트 |
JP5553293B1 (ja) * | 2014-01-21 | 2014-07-16 | 優一郎 河原 | 歯科用インプラント |
WO2016105667A1 (fr) * | 2014-12-24 | 2016-06-30 | Shatkin Todd E | Système de restauration dentaire pour installation de prothèses de bridge sur des implants dentaires miniatures |
WO2019008368A1 (fr) * | 2017-07-07 | 2019-01-10 | Juvora Limited | Prothèse dentaire |
KR20210083576A (ko) * | 2019-12-27 | 2021-07-07 | 유창민 | 틀니 임플란트 어셈블리 |
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US4488875A (en) * | 1982-04-29 | 1984-12-18 | A&L Investment Company | Connector for overdenture |
US5049072A (en) * | 1990-06-26 | 1991-09-17 | Calcitek, Inc. | O-ring attachment system for dental prosthesis |
US6302693B1 (en) * | 2000-09-08 | 2001-10-16 | Raul R. Mena | Engagement mechanism for dental prostheses |
US20050250072A1 (en) * | 2003-08-05 | 2005-11-10 | Thomas Laux | Implant part for a dental implant |
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US4488875A (en) * | 1982-04-29 | 1984-12-18 | A&L Investment Company | Connector for overdenture |
US5049072A (en) * | 1990-06-26 | 1991-09-17 | Calcitek, Inc. | O-ring attachment system for dental prosthesis |
US6302693B1 (en) * | 2000-09-08 | 2001-10-16 | Raul R. Mena | Engagement mechanism for dental prostheses |
US20050250072A1 (en) * | 2003-08-05 | 2005-11-10 | Thomas Laux | Implant part for a dental implant |
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KR101311250B1 (ko) * | 2012-04-06 | 2013-09-27 | 김만용 | 틀니용 어태치먼트 |
JP5553293B1 (ja) * | 2014-01-21 | 2014-07-16 | 優一郎 河原 | 歯科用インプラント |
WO2016105667A1 (fr) * | 2014-12-24 | 2016-06-30 | Shatkin Todd E | Système de restauration dentaire pour installation de prothèses de bridge sur des implants dentaires miniatures |
US20160184057A1 (en) * | 2014-12-24 | 2016-06-30 | Todd E. Shatkin | Dental Restoration System for Installing Bridge Prostheses on Miniature Dental Implants |
US11304782B2 (en) | 2014-12-24 | 2022-04-19 | Todd E. Shatkin | Dental restoration system for installing bridge prostheses on mini dental implants |
WO2019008368A1 (fr) * | 2017-07-07 | 2019-01-10 | Juvora Limited | Prothèse dentaire |
KR20210083576A (ko) * | 2019-12-27 | 2021-07-07 | 유창민 | 틀니 임플란트 어셈블리 |
KR102372967B1 (ko) | 2019-12-27 | 2022-03-10 | 유창민 | 틀니 임플란트 어셈블리 |
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