TY - JOUR
T1 - Cephalometric radiographic comparison of alveolar bone height changes between adolescent and adult patients treated with premolar extractions
T2 - a retrospective study
AU - Janson, Daniel
AU - Caldas, Waleska
AU - Garib, Daniela
AU - Janson, Marcos
AU - Niederberger, Ana
AU - Janson, Gabriela
AU - Valerio, Marcelo Vinicius
AU - Oyonarte, Rodrigo
AU - Janson, Guilherme
N1 - Publisher Copyright:
© 2021 CEO
PY - 2021/12
Y1 - 2021/12
N2 - Objective: In orthodontic treatment, indication of dental extractions is very common and frequently used in adult patients. This situation is a recurrent concern among orthodontists, since age and extraction treatment are factors that may increase periodontal support loss. Therefore, this study aimed to evaluate adolescent and adult patients, orthodontically treated with maxillary premolar extractions, and compare both groups regarding the changes in alveolar bone height loss, retrospectively. Materials and methods: Fifty-five patients were selected from the files of an Orthodontic Department and divided into 2 groups. The adolescent group comprised 30 patients with a mean age of 12.7 years (SD = 1.4) and the adult group comprised 25 patients with a mean age of 25.0 years (SD = 1.8). Periapical radiographs obtained at pre-treatment (T1) and posttreatment (T2) were evaluated. Wilcoxon tests were used to analyse intragroup treatment changes. Mann-Whitney tests were used to compare intergroup and inter-sex initial and final statuses and treatment changes. P < 0.05 is considered to be statistically significant. Results: Statistically significant increases in alveolar bone height loss of the maxillary central incisors were observed on the right and left sides of the adolescent (P = 0.001 and P = 0.002, respectively) and of the adult (P = 0.001 and P < 0.001, respectively) groups, during treatment. There were no significant differences in alveolar bone height between initial and final state, in treatment effects between adolescent and adult patients, in extraction patterns, and between males and females. Conclusions: Significant increase in alveolar bone height loss was found in both adult and adolescent patients orthodontically treated with maxillary premolar extractions. However, no significant differences were found regarding alveolar bone height changes after extraction orthodontic treatment between adolescent and adult patients.
AB - Objective: In orthodontic treatment, indication of dental extractions is very common and frequently used in adult patients. This situation is a recurrent concern among orthodontists, since age and extraction treatment are factors that may increase periodontal support loss. Therefore, this study aimed to evaluate adolescent and adult patients, orthodontically treated with maxillary premolar extractions, and compare both groups regarding the changes in alveolar bone height loss, retrospectively. Materials and methods: Fifty-five patients were selected from the files of an Orthodontic Department and divided into 2 groups. The adolescent group comprised 30 patients with a mean age of 12.7 years (SD = 1.4) and the adult group comprised 25 patients with a mean age of 25.0 years (SD = 1.8). Periapical radiographs obtained at pre-treatment (T1) and posttreatment (T2) were evaluated. Wilcoxon tests were used to analyse intragroup treatment changes. Mann-Whitney tests were used to compare intergroup and inter-sex initial and final statuses and treatment changes. P < 0.05 is considered to be statistically significant. Results: Statistically significant increases in alveolar bone height loss of the maxillary central incisors were observed on the right and left sides of the adolescent (P = 0.001 and P = 0.002, respectively) and of the adult (P = 0.001 and P < 0.001, respectively) groups, during treatment. There were no significant differences in alveolar bone height between initial and final state, in treatment effects between adolescent and adult patients, in extraction patterns, and between males and females. Conclusions: Significant increase in alveolar bone height loss was found in both adult and adolescent patients orthodontically treated with maxillary premolar extractions. However, no significant differences were found regarding alveolar bone height changes after extraction orthodontic treatment between adolescent and adult patients.
KW - Adolescent
KW - Adult
KW - Alveolar Bone Loss
KW - Orthodontics
KW - Tooth Extraction
UR - http://www.scopus.com/inward/record.url?scp=85114667085&partnerID=8YFLogxK
U2 - 10.1016/j.ortho.2021.08.004
DO - 10.1016/j.ortho.2021.08.004
M3 - Article
C2 - 34511394
AN - SCOPUS:85114667085
SN - 1761-7227
VL - 19
SP - 633
EP - 640
JO - International Orthodontics
JF - International Orthodontics
IS - 4
ER -