Intraoral device
An intraoral device having a main body to be attached to maxillary teeth, the main body including a first region, a second region, and a third region. Mandibular anterior teeth are in contact with the first region. The mandibular anterior teeth in contact with the first region are moved toward the third region while being kept in contact with the second region, which causes the mandible to move anteriorly and superiorly.
1. An intraoral device comprising a continuous main body to be attached to a plurality of maxillary teeth in a mouth at once, wherein:
the continuous main body includes a first region, a second region, and a third region,
the first region is configured to be provided in a position where a mandible cannot be retracted further posteriorly, and the first region is configured to be in contact with mandibular anterior teeth at this position,
the continuous main body has a shape configured to conform to a lingual interface between crown and gingiva of maxillary teeth to which the main body is attached, an incisive papilla being configured to be exposed from the continuous main body,
the first, second, and third regions being configured such that the mandibular anterior teeth, after being brought into contact with the first region, are moved to make contact with the second region with a closing of the mouth with the mandibular anterior teeth in contact with the continuous main body, and successively moved with the closing of the mouth with the mandibular anterior teeth in contact with the continuous main body to make contact with the third region, thereby causing the mandible to move anteriorly and superiorly while at least a portion of the mandibular anterior teeth remain positioned posteriorly to the maxillary anterior teeth when in contact with the third region,
the continuous main body is configured to be inclined toward the mandible from the third region to the first region so that a space is formed between a lingual side face of the continuous main body and a palate, and after the mandible is configured to be moved anteriorly and superiorly, incisive papilla are configured to be exposed from the continuous main body and on the lingual side face of the continuous main body such that when a distal end portion of a tongue is placed on the incisive papilla the tongue is allowed to make contact with the palate, and
wherein the intraoral device is configured to be attached inside the mouth such that an anterior side and bottom end of maxillary anterior teeth are exposed.
2. The intraoral device according to claim 1 , wherein the intraoral device is configured to be attached inside the mouth such that the mouth is allowed to be closed.
3. The intraoral device according to claim 1 , comprising a locking device that includes
a hook configured to be engaged with an undercut that exists in a direction of attachment and removal of the continuous main body, and
a leg portion extending from the hook and embedded in the continuous main body, with the leg portion being embedded in the continuous main body at a point configured to be higher than a lingual crown center of a maxillary tooth on a palatal side, and passing through a point configured to be higher than the lingual crown center of the maxillary tooth on the palatal side while being embedded in the continuous main body, and moreover terminating at a point configured to be higher than the lingual crown center of the maxillary tooth on the palatal side.
4. The intraoral device according to claim 1 , wherein the continuous main body is configured to be attached to teeth from a maxillary right first or second premolar to a maxillary left first or second premolar.
5. The intraoral device according to claim 1 , wherein the continuous main body is made of resin.