Akulwar Ravikumar Suryakanth, Kodgi Ashwin
Reader, Department of Prosthodontics, Midsr Dental College and Hospital Latur , Maharashtra, India .
Senior Lecturer, Department of Prosthodontics, Midsr Dental College and Hospital Latur , Maharashtra, India .
J Clin Diagn Res. 2014 Jul;8(7):ZD12-3. doi: 10.7860/JCDR/2014/9710.4572. Epub 2014 Jul 20.
A frequent clinical situation, either in the maxillary or mandibular arch, is of a missing first premolar and first molar, resulting in fixed partial denture design in which the canine and the second molar act as terminal abutments and second premolar act as a pier abutment. It has been postulated that the tendency of terminal abutments to intrude during function results in a teetering movements, where the pier abutment act as a fulcrum. These movements will eventually result in debonding of the less retentive terminal retainer. In order to overcome this potential risk, utilization of non rigid connectors has been advised. This clinical case report describes incorporation of non rigid connector to rehabilitate pier abutment case.
在上颌或下颌牙弓中,常见的临床情况是第一前磨牙和第一磨牙缺失,这会导致固定局部义齿设计,其中尖牙和第二磨牙作为末端基牙,第二前磨牙作为桥基牙。据推测,末端基牙在功能过程中发生侵入的趋势会导致跷跷板运动,此时桥基牙充当支点。这些运动最终将导致固位力较差的末端固位体脱粘。为了克服这种潜在风险,建议使用非刚性连接体。本临床病例报告描述了采用非刚性连接体修复桥基牙病例的情况。