Quantitative tooth mobility evaluation based on intraoral scanner measurements.
J Periodontol
; 91(2): 202-208, 2020 02.
Article
em En
| MEDLINE
| ID: mdl-31378924
ABSTRACT
BACKGROUND:
Tooth mobility assessment is subjective and current techniques require the translation of a continuous variable to a categorical variable based on the perception of the examiner. The aim of this study was to evaluate the reliability of a novel technique to assess tooth mobility.METHODS:
Three experienced periodontists were asked to push tooth #16 into a buccal position to in a typodont model with different mobility (M1-M2). Tooth position was obtained using an intraoral scanner and files were compared in metrology software. Mobility was calculated at three reference points at the cervical (C), middle (M), and occlusal (O) regions of the buccal surface of the tooth to determine the linear deviation in the three axes (x, y, and z). Reliability was determined by intraclass-correlation coefficient, differences between M1 and M2 determined by t test, and the analysis of variance (ANOVA) was used to compare the data at the C-M-O regions.RESULTS:
Excellent reliability was assessed by Cronbach alpha >0.9 on the x-y-z axes for both mobility tested, except for M1-C X (0.85), M1-M Y (0.89), and M2-M Z (0.89). The correlation between the examiners demonstrated excellent (Ë0.90) or good (0.75Ë x Ë0.90) consistency, except for M1-C Y (0.73; examiner 1 to 2) and M1-M X (0.69; examiners 1 to 3). Significant changes were detected in all axes at the three reference points comparing M1 and M2, and a similar proportional change was observed between O-M-C reference points for M1 and M2.CONCLUSION:
A novel technique to assess tooth mobility based on intraoral scanner measurements provided reliable data in an in vitro experiment.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dente
/
Mobilidade Dentária
Tipo de estudo:
Prognostic_studies
Limite:
Humans
Idioma:
En
Revista:
J Periodontol
Ano de publicação:
2020
Tipo de documento:
Article