A TEMPORARY AND INSTANT BITE RAISER IN THE FIXED ORTHODONTIC TREATMENTS

Abstract: The prevention of the occlusal contacts may be occasionally necessary during fixed orthodontic treatments. This invention is a treatment accessory to instantly and temporarily raise the bite. By attaching it into the molar tubes, the occlusal contacts of the opposite teeth are instantly and temporarily, prevented. The bite raiser is constructed by using 0.8-0.9 mm, Cr-Ni, titanium or similar metals. Vestibular side consisted of two types of elements; a pair of insertion wings, serving to insert the raiser into the molar tube, and a pair of proximal wings extended from the insertion wings, serving to attach the raiser to the tube. The two arms of these pieces extend to the occlusal surface of the tooth with an angle according to the anatomical form of the molar tooth. On the occlusal surface, three occlusal stops are extended from the three sides of the occlusal part. They could be bent to the occlusal pits of the molar tooth to increase the stability and the height of the raiser. The occlusal shape is wider on the palatal side, and narrower on the vestibular side. This shape provides the settling of the reinforced palatal angles, on the palatal cusps of the molar tooth. Reinforcement is made by widening the metal surface of the palatal angles. On the palatal side, there is a "T" shaped palatal spur, serving to attach the raiser to the palatal part of the molar band. This "T" shaped spur could also be bent to the opposite side, in the condition of the insufficiency of raising the bite.

Description: DESCRIPTION A Temporary and Instant Bite Raiser in the Fixed Orthodontic Treatments Orthodontic treatments are performed by using removable and fixed appliances. Fixed appliance methods are developing continually. The prevention of the occlusal contacts may be occasionally necessary during fixed orthodontic treatments. Treatment of some cases such as deep-bite, cross-bite and scissors- bite with fixed appliances, it is usually necessary to open the bite temporarily in order to prevent bracket shearing and to allow for easy tooth movement. In the treatment of deep bite cases, bonding of the lower incisors requires a certain time. Since, on such cases the bite must be opened sufficiently before bonding of the lower incisors. Otherwise, the upper incisors may cause the shearing of those brackets. In the treatments of the "buccal non-occlusion" and "telescopic-bites", the bite must also be raised to allow for easy tooth movement. Likewise, in the treatment of the "anterior and posterior cross-bites", temporarily opening the bite will ensure easy tooth movement and easy expansion in a short time. Out off the above mentioned reasons, raising the bite, may be necessary in many cases. Temporary and instant raising of the bite, during fixed orthodontic treatments are commonly obtained by using removable occlusal plates. However, the application of these plates, beside of their difficulty of usage, requires complete patient co-operation. Bonding of restorative materials on the occlusal surfaces of the posterior teeth can be performed, alternatively. Application of these materials is an appropriate method for bite opening however the adhesive force of these materials is not sufficient to resist to the occlusal forces due to the absence of cavity preparation. Also, this method could not ensure the hygienic conditions since, the rest of these materials could not be cleaned sufficiently after their usage. Review of the literature revealed that this subject is quiet ignored. Fine, in deep-bite cases, has bonded "Begg" brackets to the maxillary central incisors to prevent the shearing of the lower incisor brackets. Furthermore, the shearing of the lower brackets were tried to be prevented by using lingual brackets which are as fragile as the lowers. More over, this is not an invention, nor a different wire bending. This is a different use of the existed treatment accessories. To solve this limitation of instant and temporary bite raising, I developed a special wire bending and I published it's usage as a case report in the Journal of Turkish Orthodontic Society, in 1995. Same year, I presented it in the name of "Semi-fixed Temporary Bite-riser" in the 71 th Congress of the European Orthodontic Society, in Bergen- Norway. This article is also pubhshed in the April 1999 issue of the Journal of Clinical Orthodontics. Since it's first publication, with my clinical experiences, I developed the original model and reached to its final form, which became now available to the serial fabrication. In other words, it resembles to it's original by it's function, but it's form and usage facilities are totally developed. Due to these properties, it became also an commercial article. The aim of this invention, is to instantly and temporarily raise the bite, as described above. However, the most important is that the bite-raiser does not necessitate patient cooperation and this ensures success of the treatment, in a short time. Furthermore, it is also valuable for its optimal hygienic conditions. It has no pathological effects on the molars due to its temporary usage. Molar intrusion may be observed in a long time application and this reversible tooth movement can be compensated with arch bending This instant and temporary bite raiser can be preferred and recommended on proper cases and can be used with any fixed appliance with minimal modification. Figure 1: View of the bite raiser. The components of the raiser are numerated in the figure and described below; 1. Insertion wings. 2. Proximal wings. 3. Occlusal stops. 4. Palatal spur and raise increasing piece. The bite raiser is constructed by using 0.8-0.9 mm. Cr-Ni, titanium or similar metals. Vestibular side consisted of two types of elements; a pair of insertion wings, serving to insert the raiser into the molar tube, and a pair of proximal wings extended from the insertion wings, serving to attach the raiser to the tube by an elastic ring or a ligature wire (Figure 1, no.l & 2). The two arms of the ensemble extend to the occlusal surface of the tooth with an angle according to the anatomical form of the molar tooth (Figure 1). On the occlusal surface three occlusal stops are extended from the three sides of the occlusal part (Figure 1, no 3). They could be bent to the occlusal pits of the molar tooth to increase the stability and the height of the raiser. The occlusal shape is wider on the palatal side, and narrower on the vestibular side. This shape provides the settling of the reinforced palatal angles, on the palatal cusps of the molar tooth. Reinforcement is made by widening the metal surface of the palatal angles. On the palatal side, there is a "T" shaped palatal spur, serving to attach the raiser to the palatal part of the molar band. This T" shaped spur could also be bent to the opposite side, in the condition of the insufficiency of raising the bite.

Claims: CLAIMS 1. A temporary and instant bite raiser is characterised on the vestibular side, with two pairs of insertion and of proximal wings, and the angular extension of these two arms to the occlusal surface of the tooth, on the occlusal surface, with the three occlusal stops, and on the palatal side, with the "T" shaped palatal spur. 2. A pair of insertion wings of the vestubular side, serving to insert the bite raiser into the molar tube. 3. A pair of proximal wings of the vestibular side, extended from the insertion wings, serving to attach the bite raiser to the molar tube by an elastic ring or a ligature wire. 4. The three occlusal stops extended from the three sides of the occlusal part, and their property to be bent to the occlusal pits of the molar tooth, to increase the stability and the height of the bite raiser. 5. The shape of the occlusal part of the bite raiser, wider on the palatal, and narrower on the vestibular sides, providing the settling of the reinforced palatal angles, on the palatal cusps of the molar tooth. 6. The reinforcement of the palatal angles of the occlusal part, made by widening the metal surface of the palatal angles. 7. The "T" shaped palatal spur, serving to attach the raiser to the palatal part of the molar band and its property to increase the raised bite by bending it to the opposite side.

Inventors: GURAY ENIS YASAR, GUEAY, YA&SCEDIL
Applicants: GURAY ENIS YASAR, GUEAY, YA&SCEDIL
Application year: 1999
Main classification: A61C7
IPC codes: A61C7