Alveolar bone dimensional changes and buccolingual inclination of lower incisors after surgically accelarated orthodontics
Date
2019-03-11
Authors
Rios Castaño, Daniela
Roldán, Mina María
Álvarez, María Antonia
Correa, Santiago
Manrique, Rubén Darío
Aristizábal, Duvan Fernando
Ríos F, Hector
Rey Mora, Diego
Journal Title
Journal ISSN
Volume Title
Publisher
Univesidad CES
Abstract
Objective: To evaluate the dimensional changes in height and thickness at the alveolar bone and
delimitating the buccolingual inclination of the lower incisors, before and after the accelerated
orthodontics with a modified piezocision protocol.
Materials and Methods: In this retrospective study, 37 subjects with Angle malocclusion class I, II
or III, mild crowding and a thin periodontium at level of lower incisors were divided randomly into
4 treatment groups: group 1 control; group 2 lower piezocision; group 3 lower piezocision and soft
tissue graft; group 4 lower soft tissue graft. In Cone beam computed tomography (CBCT) T0 before
and T1 after treatment, 148 lower incisors were assessed in buccolingual inclination, alveolar bone
height and thickness.
Results: There was proclination of lower incisors after treatment except in group 3 (−4.7º ± 13.6º).
Buccal and lingual alveolar ridge decreased vertically in all the groups, but group 3 showed less
lingual decrease (0.9 mm ±1.9). All the groups showed a decrease in buccal and lingual alveolar
thickness but group 3 showed less change thickness (−0.2 mm ± 0.7).
Description
Keywords
Alveolar bone, Buccolingual inclination, Orthodontics