JP2007282698A - Dental mouth opener - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mouth opener which enables the opening of the patient's mouth during the dental treatment and the expansion of lips at a site disturbing the treatment simultaneously. <P>SOLUTION: The lips on the side opposite to a bite block 11 is expanded with a mouth corner hook 12 mounted on a spring 13 connected to the bite block 11 set between teeth on upper and lower jaws within an oral cavity to facilitate the opening of the patient's mouth while improving the workability of the treatment by a dentist. The angle of the connection of the bite block 11 and the spring 13 is variable, thereby enabling the mouth corner hook to expand a desired site of the lips. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an opening device provided with a dental bite block and a mouthpiece. According to the opening device of the present invention, the opening and lip expansion during dental treatment can be easily and effectively performed.

In performing dental treatment, the patient needs to open his mouth during the treatment, and it is necessary to dilate the lip at the site which prevents the treatment from being overcome. Long opening causes pain to the patient, and lip extension by dentists and hygienists makes the workability of the treatment worse. Therefore, a dental bite that assists the opening by biting between upper and lower teeth than before. There is what is called a block (see, for example, Patent Document 1).
In addition, there is an opening device that assists opening by expanding the lips left and right or up and down by connecting horns (for example, see Patent Document 2).
Moreover, there exists an opening device which assists opening by biting between upper and lower teeth and adjusting a distance (for example, refer patent document 3).

JP2003-245290 JP-A-11-178792 JP2001-017451

  The bite block can be bitten between upper and lower teeth to secure an opening, but does not have a lip expansion function, and the lip needs to be expanded separately using a lip or a finger. As with the bite block, the opener has a function of opening by biting the upper and lower teeth, and the opening and lip of the mouth by expanding the lips by connecting the horns to the left and right or up and down without biting the teeth. Some have an expansion function, but for lip expansion, it is not possible to selectively expand only the lip of the treatment site in order to expand the lip left, right, up, down, or the entire lip outward. Alternatively, since the upper and lower sides are expanded at the same time, the opposite side of the portion that needs to be expanded is expanded, and as a result, it is difficult to efficiently expand the necessary portion. Because the auxiliary work necessary for the treatment of opening and lip expansion at a specific site could not be achieved at the same time with a single instrument, the patient, the dentist and the dental hygienist have a heavy burden on the auxiliary work during the treatment. Is given. Accordingly, there has been a demand for the development of a holding device capable of simultaneously expanding the opening and the lip of a specific part.

The present inventor aimed to develop a holding device capable of simultaneously expanding the opening and the lip of a specific part, and reduced the burden on the patient's opening and selectively only the part of the lip that obstructed during the treatment. An opener that can be expanded has been developed.
Therefore, the subject of this invention is providing the above-mentioned opening device.

In order to solve the above problems, the opening device of the present invention comprises a bite block that can be bitten between upper and lower teeth to secure a space between the upper and lower jaws, an angular fold that expands the lips, and a bite block. It is characterized by comprising a spring made of an elastic body for connecting the corner ridges. The opening device constructed in this way is attached to the patient's mouth, for example, bite block is bitten by the right tooth, the lip is extended on the left lip, and the lip is expanded by the spring force to secure the opening However, it is possible to expand the left lip that overcomes the problem.
Moreover, the arbitrary position of the left lip can be expanded by adjusting the attachment angle of the spring connected to the bite block.

  In the preferred opening device of the present invention, the bite block and the mouth ridge are connected by a spring made of an elastic body so that the opening and the lip can be expanded simultaneously. In the preferred opening device of the present invention, the attachment angle of the spring connected to the bite block and the mouth corner fold can be arbitrarily adjusted in order to allow expansion of the lips at any part.

  Since the opening device of the present invention is easy to attach to the patient, it does not consume unnecessary time for preparation such as opening of the opening or lips, and gives the patient the burden of opening during treatment. There is no. For the dentist, the work for opening becomes unnecessary during the treatment, so that the treatment can be performed comfortably because the dentist can concentrate on the original treatment.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 2 shows an example in which an opener is attached to a patient and the upper part of the right lip is expanded.
The opening device 1 according to the description of the embodiment shown in FIG. 1 includes a bite block 11 as a means for maintaining an opening, a mouth ridge 12 as a means for expanding the lips, and a spring 13 for applying an expansion force to the mouth horn 12. including. The spring 13 is connected by a hinge 21 on the bite block 11 and can rotate on a plane parallel to the patient's face. Therefore, the mouthpiece 12 can be pulled in any direction depending on the mounting angle. The lip 12 is connected to the spring 13 by a hinge 22 on the lip so that it can rotate on a plane parallel to the patient's face and can naturally fit the expanding lip.
In the embodiment shown in FIG. 1, a plastic spring 13 is used as a spring for applying an expansion force to the corner ridge 12, but a metal wire can be used instead.
In addition, in the embodiment shown in FIG. 1, a spring 13 is used to apply an expansion force to the mouthpiece 12, but the distance between the mouthpiece 12 and the bite block 11 is adjustable by changing to a spring as shown in FIG. It is also possible to use the arms 61 and 62 and the fixing screw 63 that can be fastened.

  FIG. 4 shows an example of a connection example between the bite block 11 and the spring 13. The portions 31 and 32 that mesh with the upper teeth 51 and the lower teeth 52 of the bite block 11 have a groove shape so as to follow the direction of the dentition, and the bite blocks are exposed to the outside of the lips 56 and 57. A rib 34 perpendicular to the groove is provided, and the hinge 21 is provided on the rib 34. The bite block 11 and the spring 13 are fastened by the hinge 21. Therefore, the spring connected to the hinge 21 can rotate in a direction perpendicular to the dentition. Since the bite block 11 is attached to the molar portion, the spring 13 can rotate in parallel with the face. The hinge 21 is circular and can be freely rotated. However, it is possible to attach a key to the hinge 21 or connect the spring 13 as a polygon only at a specific angle. The spring 13 can be fixedly connected. The bite block 11 is required to withstand sterilization operations from the viewpoint of infection prevention, but protects the patient's teeth and has heat resistance, chemical resistance, and elasticity in the sense of relieving discomfort when chewed. A plastic having a sufficient strength to withstand the biting force, such as polypropylene, is preferable. The spring 13 can be a plastic or metal plate or wire having the necessary elasticity.

FIG. 5 shows an example of a connection example of the mouthpiece 12 and the spring 13. The mouth ridge 12 is fitted with a hinge 22 that fits to the lip 56 and is perpendicular to the lip surface by the mouth ridge groove 41. A spring 13 can be attached to the hinge 22, and the mouthpiece 12 can be rotated with respect to the spring 13. Therefore, regardless of the position of the lip 12 on the lip 56, the groove 41 can follow the lip 56 and naturally expand the lip toward the cheek 58 to expose the dentition 55.
In the embodiment shown in FIG. 5, the mouthpiece 12 is rotatably attached to the spring 13 by a hinge 22, but a key is attached to the hinge 22, or the spring is connected only at a specific angle as a polygon. Also, it is possible to connect the mouthpiece 12 and the spring 13 in a fixed manner. Since the keratin fold 12 directly contacts the lip 56, a soft plastic is preferable in order to prevent discomfort, but it must be a material that can withstand various sterilization treatments from the viewpoint of preventing infection.

It is a perspective view of one mode of an opening device of the present invention. It is an example which mounted | wore the patient with the opening device shown in FIG. It is a perspective view of one mode of an opening device of the present invention. It is an example of the connection example of the byte block of this invention. It is an example of the example of a connection of the horn ridge of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Opener; 2 ... Opener; 11 ... Bite block; 12 ... Mouth corner; 13 ... Spring; 21 ... Hinge; 22 ... Hinge; Bite block groove; 32 ... Bite block groove; 34 ... Rib; 41 ... Mouth corner groove; 51 ... Maxillary tooth; 52 ... Mandibular tooth; 55 ... Teeth row; -Lips; 57 ... Lips; 58 ... Cheeks; 61 ... Fixed arm; 62 ... Movable arm; 63 ... Fixed screw

Claims (3)

The lip is expanded by a bite block that can be bitten between upper and lower teeth to secure a space between the upper and lower jaws, a spring connected to the bite block, and a horn that is connected to the spring. A dental opener that can expand the opening and lips at the same time. The dental opener according to claim 1, wherein an arbitrary part of the lip can be expanded by adjusting an attachment angle between the bite block and the spring. 2. The dental opener according to claim 1, further comprising an arm which can be fixed by changing the distance between the bite block and the square hook instead of the spring.

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