PDF(Pubmed)
Abstract：
Clinicians should be well-versed in the anatomy, variations, and teeth anomalies. Developmental disturbances of the teeth can lead to alterations in size, shape, number, structure, and eruption of the teeth. Developmental disturbances can lead to germination, fusion, concrescence, dilaceration, talons, cusps, dens in dente, etc. Protostylid, an additional cusp on the buccal aspect of the maxillary molar, which is a rare clinical finding, can lead to plaque accumulation, making oral hygiene maintenance difficult. This leads to clinical attachment loss and bone loss. This condition may often go undiagnosed. It should be diagnosed to prevent further complications. This case has been reported to make clinicians aware of the importance of diagnosing the case at the earliest possible time so that complications can be prevented and management is easier. From the perspective of forensic dentistry, this morphological feature, though uncommon, may be useful for the classification and identification of victims in mass causalities and bite marks on bodies or inanimate objects. This is one of the rarest cases of protostylids reported to date. This may not only pose a significant problem in endodontic therapy due to morphological alterations in root canals and periodontal therapy due to grove formation leading to an inability to maintain a plaque-free area (bone loss) but also be of very significant interest from the perspective of forensic dentistry.
摘要：
临床医生应该精通解剖学，变体,牙齿异常牙齿的发育障碍会导致大小的改变，形状,number,结构,和牙齿的萌出。发育障碍会导致发芽，聚变,凹凸不平,撕裂,爪子,尖点,丹特的窝点，等。原虫,上颌磨牙颊侧的另一个尖点，这是一个罕见的临床发现，会导致斑块积聚，使口腔卫生维护困难。这导致临床附着丧失和骨丢失。这种情况可能经常无法诊断。应该诊断以防止进一步的并发症。据报道，该病例使临床医生意识到尽早诊断该病例的重要性，以便可以预防并发症并更容易管理。从法医牙科的角度来看,这种形态特征，虽然不常见，可能有助于对受害者进行大规模因果关系和身体或无生命物体上的咬痕的分类和识别。这是迄今为止报道的最罕见的原叶茎属病例之一。这不仅可能在牙髓治疗中造成重大问题，因为根管的形态学改变和由于树林形成导致无法维持无斑块区域（骨丢失）的牙周治疗，而且从法医牙科的角度来看，这也引起了极大的兴趣。
