Investigation of Impacted Supernumerary Teeth: A Cone Beam Computed Tomograph (Cbct) Study

Abstract

Purpose:The purpose of this study was to investigate the impacted supernumerary teeth which were initially detected on panoramic radiographs by using cone beam computed tomography (CBCT).Materials and Methods:In this retrospective study, supernumerary teeth diagnosed on panoramic radiographs taken from patients who had admitted for routine dental treatment were evaluated using CBCT. Patients’ age, gender, systemic conditions as well as number of supernumerary teeth, unilateral-bilateral presence, anatomical localization (maxilla, mandible, anterior-premolar-molar, mesiodens-lateral-canine, parapremolar-paramolar-distomolar) shape (rudimentary, supplemental, tuberculate, odontoma), position (palatal-lingual-buccal-labial-central), shortest distance between the tooth and adjacent cortical plate, complications and treatment were assessed. Results:A total of 47 impacted supernumerary teeth in 34 patients were investigated in this study. Of these, 33 (70.2%) were unilateral and 14 (29.8%) were bilateral. Only 1 supernumerary tooth was found in 27 patients (79.4%) whereas 7 patients (20.6%) had 2 or more supernumerary teeth. Most of the teeth located in the anterior region (74.4%) of the jaws and maxilla (74.4%). Twenty teeth (42.5%) were mesiodens, 11 (23.4%) were lateral or canine, 14 (29.7%) were parapremolar and 2(4.4%) were distomolar. Twenty-seven teeth (57.4%) were rudimentary, 15 (31.9%) were supplemental and 5 (10.7%) were odontoma in shape. The shortest distance between the supernumerary tooth and adjacent cortical plate varied between 0 to 2.5 mm with a mean of 0.66 mm. The most common clinical complaint was the non-eruption of permanent teeth (42.5%). All supernumerary teeth were removed under local anesthesia. Orthodontic traction was performed for those impacted permanent teeth if necessary. Conclusion:Impacted supernumerary teeth are usually in close proximity to cortical bone. Although this may facilitate surgical access, there is a risk of damaging surrounding anatomical structures. Therefore, CBCT evaluation of impacted supernumerary teeth for accurate planning is recommended.

Mandi̇bula Posteri̇orunda Büyük Boyutlu Kompleks Odontom: Vaka Raporu

“…14 Bununla birlikte tümörün çok büyük boyutlara ulaştığı ve anatomik yapılara yakınlık gösterdiği durumlarda DVT gibi daha ileri görüntüleme tekniklerine de ihtiyaç duyulabilmektedir. 8,18 Büyüklüğü 3 cm'den fazla olan odontomlar dev odontom veya büyük odontom olarak adlandırılmaktadır. 2 Literatürde lezyon büyüklüğü 3 cm'den 8 cm'ye kadar değişen vakalar bildirilmiştir.…”

Extensive dentigerous cyst associated with a maxillary mesiodens in a 55-year-old male – case report and literature review

“…In most cases, enucleation is recommended before the expected eruption of permanent incisors [9]. Indications for the enucleation of mesiodentes include: inhibited or delayed eruption of the central incisor, planned orthodontic treatment aimed at changing the position of teeth located in the vicinity of the supernumerary tooth, presence of a mesiodens in patients with cleft lip and palate, as well as in patients in bone lamina [26]. Precise determination of the position of the mesiodens, its relation to the adjacent roots and crowns of permanent teeth, and the location of the incisive canal may help reduce postoperative complications [9,26].…”

Sendromsuz hastalarda çok sayıda süpernümerer diş: İki olgu sunumu

“…Daha sonra sırasıyla; ilave küçük azılar, ilave yan keser dişler, yirmi yaş dişlerin distalinde gözlenen distomolarlar, iki büyük azı diş arasında gözlenen paramolarlar görülmekte olup en az ilave köpek dişine rastlanmaktadır. 4 Bu ilave dişler ağız içerisine sürebileceği gibi gömülü olarak kalıp radyolojik görüntüleme ile tesadüfen de görülebilirler. 4 Ağız içerisine sürdüklerinde dişlerde yer darlığı, çapraşıklık sonucu erken diş çürüğü ve estetik problemlere; gömülü kaldıklarında ise diğer dişlerde yer değişikliği, sürme problemleri, kök rezorbsiyonu veya kist oluşumu gibi birçok soruna neden olabilirler.…”

“…4 Bu ilave dişler ağız içerisine sürebileceği gibi gömülü olarak kalıp radyolojik görüntüleme ile tesadüfen de görülebilirler. 4 Ağız içerisine sürdüklerinde dişlerde yer darlığı, çapraşıklık sonucu erken diş çürüğü ve estetik problemlere; gömülü kaldıklarında ise diğer dişlerde yer değişikliği, sürme problemleri, kök rezorbsiyonu veya kist oluşumu gibi birçok soruna neden olabilirler. Bu sebeple çoğunlukla süpernümerer dişlerin çekilmesi gerekir.…”