Severe Impaction of the Primary Mandibular Second Molar Accompanied by Displacement of the Permanent Second Premolar

Abstract

Tooth impaction is defined as any tooth that fails to erupt into a normal functional position and remains unerupted beyond the time at which it should normally erupt. Reports of impaction and eruption failure in primary teeth are relatively rare compared to permanent teeth. We report 2 rare cases where the second premolar was located on the occlusal side of the impacted mandibular second primary molar. In the first case, the succedaneous permanent tooth erupted after extraction of the primary tooth, fenestration, and traction. In the second case, the succedaneous permanent tooth erupted without fenestration or traction. Although the etiology of the tooth displacement was unknown in both cases, inhibition of the eruptive movement of the primary molar may have been associated with displacement of the succedaneous permanent premolar.

Submerged and Impacted Deciduous Molars in 27-Year-Old Male Patient - A Case Report

“…When the exfoliation of ankylosed teeth is late, problems like deviated eruption paths for nearby and opposing teeth, delayed eruption of succedaneous permanent teeth and also the position of the tooth germ can be affected leading to hooked roots. 2,7 For the management of patient with submerged teeth, the conservative treatment option was composite build-up or a stainless-steel crown to prevent tipping of adjacent teeth and to bring back the occlusion to the position, thus prevents opposing arch tooth from supra-eruption. However, because the infra-occlusion was severe in this case, it is not possible to build-up of the occlusal table with composite resin or stainless-steel crown.…”

“…Al Hassan Ali Owis 1 , Zarah Ahmed Dahas 2 , Omar Dharaj 3 , Turki Abduh Khurayzi 4 , Fareedi Mukram Ali 5 1 Dental Intern, College of Dentistry, Jazan, Kingdom of Saudi Arabia. 2 Dental Intern, College of Dentistry, Jazan, Kingdom of Saudi Arabia. 3 Dental Intern, College of Dentistry, Jazan, Kingdom of Saudi Arabia.…”

“…When a deciduous molar continues beyond this point, it is measured as over-retained. 1,2 The impaction of tooth may be primary, where the teeth had never been erupted (also called primary failure of eruption) or it may be secondary, where the teeth after eruption becomes impacted again due to several factors. The failure of eruption is primarily diagnosed when the tooth which is unerupted is covered by an intact mucosa and radiographs disclose the tooth to be totally covered in the jaw bone.…”

Impaction of Second Premolar and Primary Molar in an Inverse Relation: A Unique Radiographic Presentation

“…Inversion of the intraosseous positions of the primary molar and its succedaneous premolar is a very rare phenomenon [3]. Kjaer et al [4] stu died 29 cases of arrested eruption of primary molars and found 4 premolars to be located occlusal to the Fig.…”

Süt Ve Dai̇mi̇ Di̇şlerde Sürme Problemleri̇: 4 Olgu Sunumu

“…Süt dişlerinin ankilozu sıklıkla bu dişlerin gömülü kalmasına neden olarak gösterilmektedir 22 . Travma, periodontal ligamentte yaralanma, konjenital olarak daimi diş eksikliği, dentigeröz kist, daimi diş germinin anomalisi, periodontal membranda defekt, erken süren daimi birinci molar, hatalı sürme kuvvetleri ya da bu faktörlerin kombinasyonları da etken olarak gösterilebilmektedir [23][24] . Ayrıca odontoma benzeri sert doku anomalileri, miksofibröz hiperplazi ve ameloblastik fibroma gibi yumuşak doku değişiklikleri ile sürme yolunun mekanik olarak engellenmesi veya o bölgedeki sinir aktivitesinde meydana gelen geçici değişiklikler gibi kazanılmış nedenler süt dişlerinin gömülü kalma potansiyelini arttıran nedenler arasında gösterilmektedir 22 .…”