TY - JOUR
T1 - A simple score for evaluation of the complexity of third-molar extractions
AU - Mozzati, Marco
AU - Gallesio, Giorgia
AU - Lucchina, Alberta Greco
AU - Mortellaro, Carmen
AU - Bergamasco, Laura
N1 - Publisher Copyright:
©2014 by Mutaz B. Habal, MD.
PY - 2014/11/1
Y1 - 2014/11/1
N2 - Objectives: This article proposes a simple preoperative score to evaluate the complexity of tooth extractions of the third mandibular molar and to estimate the time involved. Study Design: We consider 11 factors (demographic, anatomic, and radiologic) that favor the surgery and that can be identified through standard clinical and radiologic examinations. The number of favorable factors (NFF) relative to each patient constitutes his/her score. The analysis of 1500 extractions performed by various surgeons with experience from 2 to 25 years evidences a quadratic inverse correlation between NFF and the time required for the surgery. Results: The shape of the time distribution suggests the existence of 3 major classes of patients characterized by time of 4 to 10 minutes, 11 to 20 minutes, and 21 to 40 minutes. The corresponding NFF brackets, as identified by their frequency distributions and validated by the receiver operating characteristic curve method, are 5 to 11 (mean [SD], 6.8 [1.6]), 2 to 4 (3.3 [1.3]), and 0 to 1 (0.8 [1.0]), respectively. Conclusions: Our results show the good performance of this score as a predictor of the surgical time and its applicability in daily practice regardless of operator experience, background, and level of surgical ability.
AB - Objectives: This article proposes a simple preoperative score to evaluate the complexity of tooth extractions of the third mandibular molar and to estimate the time involved. Study Design: We consider 11 factors (demographic, anatomic, and radiologic) that favor the surgery and that can be identified through standard clinical and radiologic examinations. The number of favorable factors (NFF) relative to each patient constitutes his/her score. The analysis of 1500 extractions performed by various surgeons with experience from 2 to 25 years evidences a quadratic inverse correlation between NFF and the time required for the surgery. Results: The shape of the time distribution suggests the existence of 3 major classes of patients characterized by time of 4 to 10 minutes, 11 to 20 minutes, and 21 to 40 minutes. The corresponding NFF brackets, as identified by their frequency distributions and validated by the receiver operating characteristic curve method, are 5 to 11 (mean [SD], 6.8 [1.6]), 2 to 4 (3.3 [1.3]), and 0 to 1 (0.8 [1.0]), respectively. Conclusions: Our results show the good performance of this score as a predictor of the surgical time and its applicability in daily practice regardless of operator experience, background, and level of surgical ability.
KW - Oral surgery
KW - Preoperative index
KW - Surgical difficulty
KW - Third mandibular molar
KW - Tooth extraction
KW - Tooth impacted
UR - http://www.scopus.com/inward/record.url?scp=84926464992&partnerID=8YFLogxK
U2 - 10.1097/SCS.0000000000001024
DO - 10.1097/SCS.0000000000001024
M3 - Article
SN - 1049-2275
VL - 25
SP - e515-e519
JO - Journal of Craniofacial Surgery
JF - Journal of Craniofacial Surgery
IS - 6
ER -