Maxillary second molar impaction in the adjacent ectopic third molar: Report of five rare cases

Abstract

Maxillary second molar impaction in the adjacent ectopic third molar is a rare condition that practitioners might face in the field of pediatric dentistry and orthodontics. The early diagnosis and extraction of the adjacent ectopic third molar have been advocated, and prior research has reported a high rate of spontaneous eruption following third molar removal. However, some challenges in the daily practice are that the early diagnosis of this type of tooth impaction is difficult with conventional radiographic examination, and sometimes the early surgical removal of the maxillary third molar must be postponed because of the risks of damaging the second molar. The objective of this study is to report a case series of five young patients with maxillary second molar impaction and to discuss the difficulty of early diagnosis with the conventional radiographic examination, and unpredictability of self-correction.

Ectopic maxillary third molar in Early PleistoceneHomo antecessorfrom Atapuerca‐Gran Dolina site (Burgos, Spain)

“…In modern humans, few studies reported cases of M 2 impaction due to an ectopic M 3 (Levy & Regan, ; Ranta, ; Salentijn, Ras, Mensink, & van Merkesteyn, ; Souki et al, ). For instance, Souki et al () reported a prevalence of 0.16% in a Brazilian population. Salentijn et al () observed that in all cases where the M 3 acted as the barrier, the developing crown of the M 3 was overlying the M 2 and located palatally and distally to the M 2 developing molar.…”

“…On the contrary, impaction of the first and, especially, second molars is rare (Kaur & Shefali, ). Prevalence of impacted M2 is low and varies between 0.08 and 2.3% (Bondemark & Tsiopa, ; Magnusson & Kjellberg, ; Souki, Cheib, de Brito, & Pinto, ).…”

“…In modern humans, few studies reported cases of M 2 impaction due to an ectopic M 3 (Levy & Regan, 1989;Ranta, 1985;Salentijn, Ras, Mensink, & van Merkesteyn, 2008;Souki et al, 2015). For instance, Souki et al (2015) reported a prevalence of 0.16% in a Brazilian population. Salentijn et al (2008) (Ahlqwist & Gröndahl, 1991;Mortazavi & Baharvand, 2016;Shear & Speight, 2007).…”

Corrective Treatment of Ectopic Eruption of Permanent First Molars: Case Report

“…Nevertheless, there was a difference in the duration of the treatments. The literature reports that distalization of lower molars presents greater difficulty than that of higher molars (13,14). However, in the cases reported, it took less time to correct the lower molars' position than that of the upper molar.…”

<p>Impaksi horizontal gigi molar kedua maksila bilateral simptomatis yang menyebabkan nyeri kepala rekuren</p><p>Horizontal impaction of symptomatic bilateral maxillary second molar causing recurrent headache</p>

“…1 Penyebab utama terjadinya impaksi gigi molar kedua umumnya akibat terhalang erupsinya oleh gigi molar ketiga disebelahnya yaitu sebanyak 70% dari kasus. 1,[3][4][5] Terjadinya impaksi gigi dapat menyebabkan berbagai masalah, antara lain perikoronitis, karies dan kerusakan akar gigi di sebelahnya, maloklusi, perkembangan tumor dan kista odontogenik, dan fraktur rahang. Masalah lain yang juga sering terjadi disebabkan oleh gigi impaksi yaitu timbulnya berbagai nyeri di daerah kepala dan rahang, 1,6 namun belum ditemukan publikasi mengenai prevelansi nyeri akibat impaksi gigi rahang atas.…”