Nirmala S V S G, Gaddam Kumar Raja, Vimaladevi P, Nuvvula Sivakumar
Department of Pedodontics and Preventive Dentistry, Narayana Dental College, Nellore, Andhra Pradesh, India.
Contemp Clin Dent. 2013 Jul;4(3):349-52. doi: 10.4103/0976-237X.118338.
Human jaws and teeth display a high degree of morphological individuality as they represent personal, family and population characteristics. A protostylid is a supernumerary or accessory cusp located on the mesial half of the buccal surface on the molars that may seldom pose problems while its presence may not be a cause for alarm in most instances. This case report presents a rare finding of protostylid on the buccal surface of the primary molars in 4 children. From the perspective of forensic dentistry, this morphological feature, though uncommon, may be useful for classification and identification of victims in mass causalities and bite marks on bodies or inanimate objects.
人类的颌骨和牙齿呈现出高度的形态个体性,因为它们代表了个人、家族和群体特征。原尖是位于磨牙颊面近中半部的额外或附属牙尖,很少会引发问题,在大多数情况下其存在也无需担忧。本病例报告展示了在4名儿童的乳磨牙颊面发现原尖这一罕见情况。从法医牙科学的角度来看,这一形态特征虽不常见,但可能有助于在大规模伤亡事件以及尸体或无生命物体上的咬痕中对受害者进行分类和识别。