WO2009131415A2 - 치과 치료용 자가 중화형 수산화칼슘 제재 - Google Patents
치과 치료용 자가 중화형 수산화칼슘 제재 Download PDFInfo
- Publication number
- WO2009131415A2 WO2009131415A2 PCT/KR2009/002163 KR2009002163W WO2009131415A2 WO 2009131415 A2 WO2009131415 A2 WO 2009131415A2 KR 2009002163 W KR2009002163 W KR 2009002163W WO 2009131415 A2 WO2009131415 A2 WO 2009131415A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- calcium hydroxide
- self
- dental treatment
- neutralizing
- dental
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
- A61K6/813—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising iron oxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/15—Compositions characterised by their physical properties
- A61K6/17—Particle size
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/70—Preparations for dentistry comprising inorganic additives
- A61K6/71—Fillers
- A61K6/76—Fillers comprising silicon-containing compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/851—Portland cements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/853—Silicates
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/86—Al-cements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K6/00—Preparations for dentistry
- A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
- A61K6/849—Preparations for artificial teeth, for filling teeth or for capping teeth comprising inorganic cements
- A61K6/876—Calcium oxide
Definitions
- the present invention relates to a self-neutralizing calcium hydroxide (Ca (OH) 2 ) preparation for dental treatment, and more particularly to a cement clinker, active silicate material, bismuth oxide (Bi 2 O 5 ), silica, sulfur trioxide and aluminum oxide /
- the present invention relates to a self-neutralizing calcium hydroxide formulation which is formulated to be mixed with ferric trioxide and used for dental treatment.
- Dental caries is a phenomenon in which the components such as calcium and phosphorus on the surface of the tooth are dissolved by acid and the components such as protein are broken down to create holes in the teeth.
- dental caries is generally called tooth decay.
- Root canal treatment In case of widespread dental caries, conventional root canal treatment and direct or indirect pulp can be applied. Root canal treatment is usually performed, but this has the disadvantage of requiring a long procedure time, a complicated procedure, and a large treatment cost. Therefore, if direct-indirect dimensional demodulation can be reliably applied at a high success rate, research is active because many patients may not suffer from the fear of dental treatment, the pain of extensive tooth removal, and the high cost. It is done.
- MTA Mineral Trioxide Aggregate
- calcium hydroxide preparations used as fillers for dental treatment include self-polymerizing calcium hydroxide preparations and photopolymerizing calcium hydroxide preparations.
- autopolymerized calcium hydroxide or photopolymerized calcium hydroxide materials are used only for indirect dimensional demodulation due to their low compressive strength, low chemical resistance, and cytotoxicity, so that the success rate in direct dimensional demodulation is too low. Due to their chemistry, they are generally not used well.
- MTA which is used in treating damaged root canals, achieves excellent biocompatibility and induction of regenerative ability of alveolar bone, and the effect of promoting secondary dentin and chalky formation, unlike conventional calcium hydroxide preparations. More research is underway.
- Another object of the present invention is to provide a self-neutralizing calcium hydroxide preparation for dental treatment which is cured at a rapid rate, has good chemical resistance and can be condensed in saline.
- another object of the present invention is to provide self-neutralizing calcium hydroxide preparation for dental treatment, which is advantageous for the treatment of damaged teeth, induces the formation of secondary dentin and chalky of teeth, and enables the preservation of vitality even when the dental pulp is cut. To provide.
- the self-neutralizing calcium hydroxide preparation for dental treatment according to the present invention configured as described above is excellent as a quick curing property and chemical resistance and can be mixed with saline to be filled in a tooth, and thus is useful as a filler for dental treatment.
- the present invention can be applied to direct-indirect dimensional demodulation and inferior dimensional amputation, which were difficult to perform with the existing techniques, and also usefully applied to the treatment of unfinished infected root canals that were only treated with conventional MTA.
- the dental filler can be obtained.
- the configuration of the present invention for achieving the above object is as follows.
- a self-neutralizing calcium hydroxide for dental treatment comprising an active silicate material and bismuth oxide, self-neutralizing for dental treatment comprising silica, sulfur trioxide, and aluminum oxide / ferric trioxide.
- a type calcium hydroxide material is provided.
- a self-neutralizing calcium hydroxide preparation for dental treatment comprising an active silicate material and bismuth oxide, comprising silica, sulfur trioxide, and aluminum oxide / ferric trioxide, wherein the hardening is effected by the addition of physiological saline.
- a portland cement clinker is prepared (of course, other types of cement clinker may be prepared).
- clinker means the lump which a part of component melt
- the raw material of cement is calcined into small lump by rotary kiln, etc.
- the main components of cement clinker are 3CaO ⁇ SiO 2 , 3CaO ⁇ Al 2 O 3 , 2CaO ⁇ SiO 2 , 4CaO ⁇ Al 2 O 3 ⁇ Fe 2 O 3 .
- Portland cement clinker manufacturing method is as follows. First, clay containing a large amount of basic substances such as silica (SiO 2 ), aluminum oxide (Al 2 O 3 ), and iron oxide (Fe 2 O 3 ) is mixed with limestone and pulverized. Thereafter, silica and iron oxide may be further added to the mixture, mixed, and calcined at about 1450 ° C., thereby preparing a portland cement clinker according to the present invention. At this time, the proportion of clay to be mixed is preferably about 20% to 30%.
- an active silica material such as volcanic ash, silicate, fly ash, etc. is preferably mixed with the Portland cement clinker by 15 to 40%, and bismuth oxide is added at a rate of 30% or less. do.
- the ratio is the mass ratio (which may be the volume ratio, but hereinafter referred to as the mass ratio). In practice, the two ratios appear to be the same (substantially), and the mass ratio controls the experiment required for the present invention. Is easier).
- bismuth oxide may be added in an equal proportion to artificial pozzolanic cement (or natural cement).
- bismuth oxide which is additionally mixed for the use of calcium hydroxide preparations for dental treatment, allows the self-neutralizing calcium hydroxide preparations for dental treatment to have radiographic contrast, so that X-rays can be used to diagnose post-treatment areas of teeth with caries. It is added to allow the treatment site to be taken by imaging. As mentioned above, the mixing amount of bismuth oxide at this time is made into 30 mass% or less. It is preferable to avoid the addition of more than a bismuth oxide, because it may degrade the biocompatibility and adversely affect the physical properties of the self-neutralizing calcium hydroxide preparation for dental treatment.
- bismuth oxide is mixed with pozzolanic cement in a ratio of 20%, 14% and 11% (or 25%, 18.75% and 12.5%), respectively.
- This experiment was carried out by making samples having a diameter of 10 mm and a thickness of 1 mm from pozzolanic cements having different mixing ratios, and putting the prepared samples into aluminum molds for 3 hours at 37 ° C and 96% humidity.
- pozolan cement was not toxic to cells when bismuth oxide was mixed in a mass ratio of 20% (or 25%), and radiopacity was determined to have a value corresponding to aluminum having a thickness of 6.81 mm.
- bismuth oxide is most preferably mixed in a mass ratio of about 20% (or 25%) when considering biocompatibility, radiopacity, and physical stability of the self-neutralizing calcium hydroxide preparation for dental treatment.
- the self-neutralizing calcium hydroxide In order for the self-neutralizing calcium hydroxide to be advantageously used for dental treatment, it must have the physical properties necessary for dental treatment as follows. In other words, fast curing, compressive toughness and volumetric stability are the physical properties that the dental filler should have. This will be described in more detail as follows.
- Curing should be started as soon as possible because the treatment time is too long if the hardening does not take place as soon as possible after the self-neutralizing calcium hydroxide preparation used as a filler in the tooth in which dental caries is progressing.
- the curing of the self-neutralizing calcium hydroxide preparation for dental treatment according to the present invention is preferably started within about 5 minutes at room temperature (about 20 °C) after the procedure.
- the tooth filled with the filling material serves to chew food.
- the user feels relief and immediately eats the food, so it is desirable to have a certain degree of compressive toughness at the beginning of filling so that the user can eat the food. Therefore, self-neutralizing calcium hydroxide preparations used in the treatment of dental caries should exhibit compressive toughness of 2 Mega Pascal (MPa) or more within 15 minutes at room temperature after the procedure.
- MPa Mega Pascal
- the filler used in the treatment of the teeth when a certain period has elapsed since the curing is started after the treatment is completed on the teeth, the volume shrinks while shrinkage occurs.
- the volume of the self-neutralizing calcium hydroxide material for dental care filled in the treatment area of the tooth is over a certain level, the bond between the self-neutralizing calcium hydroxide material for dental treatment and the tooth is weakened, and in the severe case, the filler is separated from the tooth. Since this may occur, it is necessary to have some volume stability. Therefore, even after one month after the procedure, the shrinkage rate of the self-neutralizing calcium hydroxide preparation for dental treatment should be less than 2000 ⁇ m.
- the shrinkage is reduced when more than one month has elapsed, so it is important that the shrinkage during the first month after the procedure is below a certain level.
- the tooth filling should have physical properties such as watertightness that prevents moisture from penetrating when cured after the procedure and chemical resistance that does not react with the ingredients contained in the secretions such as food or oral bacteria.
- special chemicals can be used for curing during the procedure, it is preferable to use saline, which can be used safely without affecting the human body because it can be expensive and adversely affect the human body. Therefore, the self-neutralizing calcium hydroxide preparation for dental treatment should have reactivity with physiological saline.
- the chemical composition of silicon, aluminum and iron to be additionally mixed with the self-neutralizing calcium hydroxide preparation for dental treatment should have a predetermined ratio.
- self-neutralizing type of calcium hydroxide preparation according to the invention is such that the Saturn limestone silica for dental care self-neutralizing calcium hydroxide preparation for the (CaCO 3) as a main base material (SiO 2) is more than 17% , Sulfur trioxide (SO 3 ) is 4% or less, and Al 2 O 3 ⁇ Fe 2 O 3 It can be seen that it is preferable to be derived by mixing to be 2% or more. The mixing ratio at this time is all a mass ratio.
- the self-neutralizing calcium hydroxide preparation for dental treatment is used for root canal filling during the nerve treatment of the infected tooth, there may be a case where it needs to be treated again in some cases.
- the fillers that have been previously processed must be removed.
- the hardness of the filler is too high, it is difficult to remove, so to prevent this, it is preferable to mix the zinc oxide or titanium dioxide to less than 30% to lower the hardness of the self-neutralizing calcium hydroxide preparation for dental treatment to some extent.
- the mixed zinc oxide or titanium dioxide has an anti-inflammatory action, so that the color of the self-neutralizing calcium hydroxide agent for dental treatment becomes white so that the treatment trace is not exposed to others even after the procedure is completed for the teeth.
- the mixing ratio of zinc oxide or titanium dioxide is more than 50%, the hardness of the self-neutralizing calcium hydroxide preparation for dental treatment is lowered more than necessary.
- the self-neutralizing calcium hydroxide preparation for dental treatment according to the present invention configured as described above is used for dental treatment in the following manner.
- the caries removal site (including tooth structures such as enamel and dentin, as well as the vascular and nerve tissues of the root of the tooth) of the caries that are undergoing caries is removed, and the space generated by the removal is the self-neutralization for dental treatment according to the present invention. Fill with calcium hydroxide preparation.
- calcium hydroxide is produced while clay limestone, which is the main substrate of pozzolanic cement, is hydrated.
- clay limestone which is the main substrate of pozzolanic cement
- calcium hydroxide may be produced using general water instead of physiological saline, it is preferable to use physiological saline for antibacterial disinfection.
- the calcium hydroxide produced is combined with silica of the self-neutralizing calcium hydroxide preparation for dental treatment according to the present invention to produce calcium silicate.
- the moisture produced when calcium silicate is produced reduces the heat of hydration and induces the production of neutral substances.
- a dental neutralizing calcium hydroxide preparation for dental treatment according to the present invention to which physiological saline is added is filled in the space generated in the tooth by the treatment of dental caries.
- the self-neutralizing calcium hydroxide preparation for dental treatment according to the present invention starts curing within 5 minutes at room temperature when combined with moisture, so the procedure should be performed without delay when adding saline solution.
- the infection progresses to the root of the root, even if it does not respond to the root canal treatment according to the usual method, it can be treated with the self-neutralizing calcium hydroxide agent. There was a difficult case.
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- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Plastic & Reconstructive Surgery (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Dental Preparations (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Description
Claims (6)
- 활성 실리카질 물질 및 비스무스 옥사이드를 포함하는 치과 치료용 자가 중화형 수산화칼슘 제재로서,실리카,삼산화황, 및산화알루미늄/삼산화이철을 포함하는 것을 특징으로 하는 치과 치료용 자가 중화형 수산화칼슘 제재.
- 제1항에 있어서,상기 비스무스 옥사이드는 그 질량비가 30% 이하인 것을 특징으로 하는 치과 치료용 자가 중화형 수산화칼슘 제재.
- 제1항에 있어서,상기 실리카는 그 질량비가 17% 이상이고, 상기 삼산화황은 그 질량비가 4% 이하이며, 상기 산화알루미늄/삼산화이철은 그 질량비가 2% 이상인 것을 특징으로 하는 치과 치료용 자가 중화형 수산화칼슘 제재.
- 제1항에 있어서,산화아연 또는 이산화티타늄을 더 포함하는 것을 특징으로 하는 치과 치료용 자가 중화형 수산화칼슘 제재.
- 제4항에 있어서,상기 산화아연 또는 이산화티타늄은 그 질량비가 50% 미만인 것을 특징으로 하는 치과 치료용 자가 중화형 수산화칼슘 제재.
- 활성 실리카질 물질 및 비스무스 옥사이드를 포함하는 치과 치료용 자가 중화형 수산화칼슘 제재로서,실리카,삼산화황, 및산화알루미늄/삼산화이철을 포함하고,생리 식염수의 첨가에 의해 경화가 이루어지는 것을 특징으로 하는 치과 치료용 자가 중화형 수산화칼슘 제재.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09734857A EP2277494A4 (en) | 2008-04-24 | 2009-04-24 | AUTO-NEUTRALIZING TYPE OF CALCIUM HYDROXIDE PREPARATION FOR USE IN DENTISTRY |
CN2009801237079A CN102065822B (zh) | 2008-04-24 | 2009-04-24 | 用于牙科学的自中和型氢氧化钙制剂 |
JP2011506205A JP2011518823A (ja) | 2008-04-24 | 2009-04-24 | 歯科用の自己中和型水酸化カルシウム製剤 |
CA2759687A CA2759687C (en) | 2008-04-24 | 2009-04-24 | Self-neutralising type of calcium hydroxide preparation for use in dentistry |
US12/989,349 US8801846B2 (en) | 2008-04-24 | 2009-04-24 | Self-neutralising type of calcium hydroxide preparation for use in dentistry |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2008-0038387 | 2008-04-24 | ||
KR1020080038387A KR101000402B1 (ko) | 2008-04-24 | 2008-04-24 | 치과 치료용 포졸란 시멘트 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2009131415A2 true WO2009131415A2 (ko) | 2009-10-29 |
WO2009131415A3 WO2009131415A3 (ko) | 2010-01-14 |
Family
ID=41217293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2009/002163 WO2009131415A2 (ko) | 2008-04-24 | 2009-04-24 | 치과 치료용 자가 중화형 수산화칼슘 제재 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8801846B2 (ko) |
EP (1) | EP2277494A4 (ko) |
JP (2) | JP2011518823A (ko) |
KR (1) | KR101000402B1 (ko) |
CN (1) | CN102065822B (ko) |
CA (1) | CA2759687C (ko) |
WO (1) | WO2009131415A2 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2538648C2 (ru) * | 2012-04-23 | 2015-01-10 | Елена Александровна Кузьмина | Состав для ретроградного пломбирования корневых каналов зубов |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101359073B1 (ko) | 2012-03-20 | 2014-02-05 | 장성욱 | 지르코니아 분말을 포함하는 치아 충전용 조성물 |
KR101638373B1 (ko) * | 2014-09-16 | 2016-07-12 | 주식회사 마루치 | 초속경 수경성 바인더 조성물 |
KR101829994B1 (ko) * | 2016-08-29 | 2018-03-29 | 연세대학교 산학협력단 | 치수질환의 예방 및 치료용 조성물 |
JP6777554B2 (ja) * | 2017-01-13 | 2020-10-28 | 太平洋セメント株式会社 | 粉末状歯科用セメント組成物 |
JP7051461B2 (ja) * | 2018-01-24 | 2022-04-11 | 太平洋セメント株式会社 | 歯科用ポルトランドセメント粉末 |
KR102452438B1 (ko) | 2020-09-21 | 2022-10-11 | 주식회사 마루치 | 의료용 시멘트 조성물 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2549180A (en) * | 1947-08-01 | 1951-04-17 | Ment Jack De | Dental cement |
US5415547A (en) * | 1993-04-23 | 1995-05-16 | Loma Linda University | Tooth filling material and method of use |
WO2002015848A2 (en) * | 2000-08-22 | 2002-02-28 | Jeneric/Pentron Incorporated | Dental restorative compositions and method of use thereof |
EP1347732B1 (en) | 2001-01-04 | 2006-06-14 | Dentsply International, Inc. | Dental material |
WO2005039509A1 (en) | 2003-10-24 | 2005-05-06 | National University Of Singapore | A dental composite material and uses thereof |
WO2008008184A2 (en) * | 2006-07-07 | 2008-01-17 | Dentsply International Inc. | Gutta-percha compositions for obturating dental root canals |
-
2008
- 2008-04-24 KR KR1020080038387A patent/KR101000402B1/ko active IP Right Grant
-
2009
- 2009-04-24 CA CA2759687A patent/CA2759687C/en active Active
- 2009-04-24 EP EP09734857A patent/EP2277494A4/en not_active Withdrawn
- 2009-04-24 WO PCT/KR2009/002163 patent/WO2009131415A2/ko active Application Filing
- 2009-04-24 JP JP2011506205A patent/JP2011518823A/ja active Pending
- 2009-04-24 CN CN2009801237079A patent/CN102065822B/zh active Active
- 2009-04-24 US US12/989,349 patent/US8801846B2/en active Active
-
2016
- 2016-07-12 JP JP2016137550A patent/JP2016180008A/ja active Pending
Non-Patent Citations (2)
Title |
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None |
See also references of EP2277494A4 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2538648C2 (ru) * | 2012-04-23 | 2015-01-10 | Елена Александровна Кузьмина | Состав для ретроградного пломбирования корневых каналов зубов |
Also Published As
Publication number | Publication date |
---|---|
JP2016180008A (ja) | 2016-10-13 |
CN102065822A (zh) | 2011-05-18 |
CN102065822B (zh) | 2013-08-14 |
US8801846B2 (en) | 2014-08-12 |
WO2009131415A3 (ko) | 2010-01-14 |
EP2277494A2 (en) | 2011-01-26 |
JP2011518823A (ja) | 2011-06-30 |
KR20090112473A (ko) | 2009-10-28 |
KR101000402B1 (ko) | 2010-12-13 |
CA2759687A1 (en) | 2009-10-29 |
US20110041727A1 (en) | 2011-02-24 |
EP2277494A4 (en) | 2011-11-09 |
CA2759687C (en) | 2014-05-13 |
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