Abstract
The aim of this study was to investigate the clinical effect of the extraction of
low horizontally impacted mandibular third molars by three-piece tooth sectioning.
Sixty patients with low horizontally and buccally-impacted mandibular third molars
on both sides were operated on under local anaesthesia. Three-piece tooth sectioning
was used on one side (n = 60) and the molars were extracted using a high-frequency electric knife, 45° reversed-angle
high-speed turbine, and special long crank drill. Each molar was cut into three pieces,
which were removed in the following order: middle, root, and crown. One month later,
the molars on the other side of each patient’s jaw were removed by conventional extraction
(n = 60) with the same equipment. The crown was cut and removed first, and then the remaining
piece was extracted. The duration of the procedure, and incidence postoperative swelling,
pain, and trismus were compared between the two groups. The procedure was shorter
with the three-piece method (10.05 (0.51) min) than with the conventional method (20.15
(0.88) min, p < 0.01). Postoperative swelling, pain, and trismus were all less severe with the three-piece
method than with the conventional method (p < 0.01). Three-piece tooth sectioning could be used to remove low horizontally and buccally-impacted
mandibular third molars, as it can shorten the duration of the procedure, reduce trauma,
and reduce the incidence of postoperative complications.
Keywords
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Article info
Publication history
Published online: June 15, 2020
Accepted:
March 5,
2020
Identification
Copyright
© 2020 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
