TY - JOUR
T1 - Atraumatic vertical tooth extraction
T2 - a proof of principle clinical study of a novel system
AU - Muska, Egon
AU - Walter, Clemens
AU - Knight, Alan
AU - Taneja, Pankaj
AU - Bulsara, Yogesh
AU - Hahn, Michael
AU - Desai, Mayur
AU - Dietrich, Thomas
N1 - Copyright © 2012 Elsevier Inc. All rights reserved.
PY - 2012
Y1 - 2012
N2 - OBJECTIVE: The aim of this study was to evaluate the applicability and limitations of a novel atraumatic extraction system. STUDY DESIGN: Seventy-two patients with severely decayed teeth or root remnants not suitable for forceps extraction were consecutively recruited and had 111 teeth extracted with the use of a novel atraumatic vertical extraction system (Benex). Various patient, tooth, and procedure data were recorded and analyzed. RESULTS: Overall, 92 out of 111 teeth (83%) were successfully extracted. The success rate was higher in single-rooted teeth (89%) and lower in multirooted teeth (43%), with a risk ratio for failure of multirooted versus single-rooted teeth of 5.2 (95% confidence interval 2.5-10.7). The majority of failures were characterized by insufficient retention of the screw and/or root fracture, which mainly occurred as a result of caries in the root canal, misplacement/misalignment of the screw by the surgeon, or a fracture of the root in response to drilling and/or moderate input of traction force. CONCLUSIONS: The Benex extractor system may be successfully used for atraumatic tooth extraction. The system has a higher success rate with single-rooted teeth compared with multirooted teeth. Extraction failure is mostly associated with insufficient retention or misplacement of the screw and root fracture.
AB - OBJECTIVE: The aim of this study was to evaluate the applicability and limitations of a novel atraumatic extraction system. STUDY DESIGN: Seventy-two patients with severely decayed teeth or root remnants not suitable for forceps extraction were consecutively recruited and had 111 teeth extracted with the use of a novel atraumatic vertical extraction system (Benex). Various patient, tooth, and procedure data were recorded and analyzed. RESULTS: Overall, 92 out of 111 teeth (83%) were successfully extracted. The success rate was higher in single-rooted teeth (89%) and lower in multirooted teeth (43%), with a risk ratio for failure of multirooted versus single-rooted teeth of 5.2 (95% confidence interval 2.5-10.7). The majority of failures were characterized by insufficient retention of the screw and/or root fracture, which mainly occurred as a result of caries in the root canal, misplacement/misalignment of the screw by the surgeon, or a fracture of the root in response to drilling and/or moderate input of traction force. CONCLUSIONS: The Benex extractor system may be successfully used for atraumatic tooth extraction. The system has a higher success rate with single-rooted teeth compared with multirooted teeth. Extraction failure is mostly associated with insufficient retention or misplacement of the screw and root fracture.
U2 - 10.1016/j.oooo.2011.11.037
DO - 10.1016/j.oooo.2011.11.037
M3 - Article
C2 - 22762920
SN - 1528-395X
JO - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
JF - Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology and Endodontology
ER -