3D Evaluation of Impacted Teeth in Maxillomandibular Region Using CBCT

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Dr Akriti Bhargava , Dr MS Sidhu , Dr Seema Grover , Dr Ashish Dabas , Dr Namrata Dogra, Dr Keerti Kaushik


The aim of the study was to evaluate the degree and complexity of impacted teeth using 3-dimensional analysis on CBCT. Objectives were to evaluate the position and angulation of impacted teeth in 3 dimensions and any pathology with respect to impacted tooth. The study was conducted on 31 patients who presented with impacted teeth except 3rd molars. All the conventional records along with CBCT were taken and evaluated Out of 70 teeth evaluated; in maxilla, there were 8 incisors, 34 canines and 1 premolar and in mandible, 14 canines, 3 incisors and 10 premolars. Along the x- axis, 33   canines, 4  incisors and 1 premolar were impacted mesiodistally impacted.In mandible, 8 impacted canines and premolars were mesiodistal and 02 incisors were distomesial. Along the Y- axis, in maxilla, position of impaction was 14 canines at cervical 1/3rd of adjacent tooth root, 03 incisors at middle 1/3rd, 03 were at apical 1/3rd. In mandible, 07 impacted canines were at middle 1/3rd, 02 incisors at cervical 1/3rd and 06 premolars at middle 1/3rd of adjacent tooth root. Along the z axis, in maxilla, 22.9% were buccal, 27.1% palatal and 11.4% midalveolus. In mandible, 2.9% were buccal, 11.4% lingual and 24.3% midalveolus. Prevalence of impacted canine was found to be highest all impactions. Along the x-axis, mesiodistal position was the most common. Along the y-axis, most of the impacted teeth were at middle 1/3rd of adjacent tooth root. along the z- axis, most common position was the midalveolus.

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