Balkwill's angle, occlusal plane, mandibular shape, and curve of Spee.

Autor:	Casazza E; Aix-Marseille University, School of Dentistry, Marseille, France.; APHM, Timone Hospital, Marseille, France.; ADES, CNRS, EFS, Aix-Marseille University, Marseille, France., Orthlieb JD; Aix-Marseille University, School of Dentistry, Marseille, France.; APHM, Timone Hospital, Marseille, France., Giraudeau A; Aix-Marseille University, School of Dentistry, Marseille, France.; APHM, Timone Hospital, Marseille, France., Ré JP; Aix-Marseille University, School of Dentistry, Marseille, France.; APHM, Timone Hospital, Marseille, France.
Jazyk:	angličtina
Zdroj:	Cranio : the journal of craniomandibular practice [Cranio] 2024 Sep; Vol. 42 (5), pp. 583-591. Date of Electronic Publication: 2022 Jan 12.
DOI:	10.1080/08869634.2021.2024992
Abstrakt:	Objective: This study proposes a cephalometric method to determine an individual radius of the curve of Spee in cases of occlusal prosthetic rehabilitation. Methods: A retrospective study was conducted on 469 lateral cephalograms. Statistical analysis was performed. Correlations were computed using simple regression, Z tests, paired t -tests, and one-way repeated measures ANOVA. Results: Regression calculations supported a link between the radius of the curve of Spee and occlusal plane inclination, Balkwill's angle, mandibular parameters (MP), with MP = corpus - ramus + Bonwill height. Based on MP, data that are accessible even in the absence of teeth, a regression formula can be proposed to provide an individualized estimation of the radius of the Spee curve (RCS): RCS = 0.624 * MP + 26.583. Conclusion: This study proposes an individualized estimation of the RCS from only skeletal mandibular parameters: the length of the ramus, length of the corpus, and the Bonwill height.
Databáze:	MEDLINE
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