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Computer-Aided Design/Computer-Aided Manufacturing Cutting Guides for Odontectomy of Deeply Impacted Mandibular Third Molars

By Mamdouhh Ahmed, Mariam Kamel Salah and Nesrine Khairy

Abstract

AIM: To evaluate a new technique for surgical removal of deeply impacted mandibular third molars (DIMTM), using computer-guided cutting guide to maintain inferior alveolar nerve (IAN) integrity and the covering buccal bone. PATIENTS AND METHODS: Eighteen cases indicated for removal of DIMTM. Cone-beam Computed Tomography (CBCTs) used to determine the tooth’s relation to the IAN. Computer-guided software used for fabrication of surgical cutting guide stent to expose the impacted tooth and repositioning of bone after odontectomy without fixation. Clinical assessment included a neurosensory deficit of IAN, pain using a visual analogue scale (VAS), facial swelling, and maximal mouth opening (MMO). CBCTs were taken immediately and six months postoperatively to evaluate position and healing of bone. RESULTS: None of the patients showed a permanent neurological deficit of IAN while all patients showed normal parameters of pain, facial swelling and MMO. CONCLUSION: this technique has shown the accurate determination of the bony window cuts with subsequent preservation of IAN and external oblique ridge

Topics: Deeply impacted mandibular third molar (DIMTM), Inferior alveolar nerve (IAN) injury, Computer guided cutting guide, External oblique ridge, Medicine, R
Publisher: ID Design 2012/DOOEL Skopje
Year: 2018
DOI identifier: 10.3889/oamjms.2018.371
OAI identifier: oai:doaj.org/article:09b1d084091e465e8c4e2433f51c7746
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