Rare Inverted Maxillary Third Molar Impaction: Report of Case

Incidental Detection Of A Rare Inverted And Impacted Maxillary Third Molar In A Patient Of Mandibular Unicystic Ameloblastoma

“…However, reviewing English literatures, the frequency of the inverted impacted maxillary third molar has been uncommon. Since the first reported case by Gold and Demby [8], to the best of our knowledge, including the current case, a number of 12 cases of inverted impacted maxillary third molar teeth have been reported [8][9][10][11][12][13][14][15][16]. Importantly, almost all of these cases have been detected using panoramic radiography indicating the importance of this examination tool to detect any potential dental anomalies.…”

“…Moreover, the surgical intervention for inverted molars is more challenging than other types of impactions due to the abnormal position of the crown renders it greatly inaccessible that needs extensive bone removal, excessive bone loss as well as nerve damage is the main drawback in such circumstances. Nevertheless, as aforementioned, due to the possible growth of odontogenic cystic or tumorous lesions in future, the inverted impacted maxillary third molar of the present case was surgically extracted together with the right mandibular lesion, as have also been surgically removed in a number of the previously documented cases [8,9,12,15,16]. We reported, to our knowledge, the first case of the co-existence of inverted third impacted maxillary third molar with a mandibular ameloblastoma during the examination of this mandibular lesion.…”

Inverted eruption of a supplemental lower premolar: report of an unusual case

“…mesiodens) is somewhat more likely [2–5]. Inverted impaction has been observed for incisors [6,7], canines [8], premolars [9,10], and molars [11]. Eruption of inverted teeth is extremely rare, but has been described for incisors [12] and premolars [13,14].…”

An unusual case of an inverted and impacted maxillary third molar

“…A similar study of 375 children with mesiodens reported that mesiodens often are in an inverted position and rarely erupt into the oral cavity. While inverted impacted third molars remain dormant without significant manifestation, removal presents difficulty because of the need to remove large amounts of bone and often present with the risk of displacement into the maxillary sinus. This case report describes a novel finding of an inverted and impacted left maxillary third molar whose anatomical position was localised at the alveolar lobe of the maxillary sinus and the zygomatic process of the maxilla by a panoramic radiograph and non‐contrast dentomaxillofacial cone beam computed tomography (CBCT) analysis.…”