Diez-Rodrigálvarez, DanielBonilla-Morente, ElenaLópez-Jiménez, Alberto José2026-07-312026-07-312026-03-30Diez-Rodrigálvarez, D, Bonilla-Morente, E & López-Jiménez, A J 2026, 'A Novel Method for the Diagnosis of Transverse Maxillary Deficiencies Based on CBCT', Diagnostics, vol. 16, no. 7, 1034. https://doi.org/10.3390/diagnostics160710342075-4418unpaywall: 10.3390/diagnostics16071034https://hdl.handle.net/10641/8156Publisher Copyright: © 2026 by the authors.Antecedentes/Objetivos: Desarrollar un método diagnóstico transversal basado en CBCT que establezca valores normativos de inclinación vestibulolingual para los primeros molares permanentes y distinga objetivamente entre la deficiencia transversal dentoalveolar y la deficiencia maxilar esquelética. Métodos: Se revisaron un total de 1120 exploraciones CBCT iniciales, y 40 sujetos con oclusión normal cumplieron los criterios de inclusión. Los volúmenes se reorientaron mediante un protocolo estandarizado de tres planos, y las angulaciones molares se midieron respecto a planos de referencia paralelos al plano oclusal. La fiabilidad intra e interexaminador se evaluó mediante el CCI. Se realizaron análisis descriptivos, comparativos y de correlación de forma bilateral y entre arcadas. Resultados: No se observaron diferencias derecha-izquierda significativas en la angulación del molar superior (URM vs. ULM: 99.5° vs. 99.1°; t(19) = 1.560, p = 0.135) ni en la angulación del molar inferior (LRM vs. LLM: 78.9° vs. 78.9°; t(19) = 0.301, p = 0.767). El análisis no paramétrico confirmó estos hallazgos (ULM vs. URM: Z = −1.203, p = 0.229; LLM vs. LRM: Z = −0.427, p = 0.669). Se observaron correlaciones bilaterales positivas significativas en ambas arcadas (superior: rS = 0.784, p < 0.001; inferior: rS = 0.837, p < 0.001). Se encontró una correlación negativa significativa entre las angulaciones de los molares superior e inferior (lado izquierdo: rS = −0.626, p = 0.003; lado derecho: rS = −0.858, p < 0.001), lo que demuestra una compensación dentoalveolar. Conclusiones: La CBCT permite evaluar con precisión la inclinación vestibulolingual molar y establecer patrones normativos esenciales para el diagnóstico transversal. El método propuesto permite cuantificar el «defecto basal» maxilar tras la descompensación dental virtual, proporcionando una herramienta objetiva para diferenciar las discrepancias transversales dentoalveolares de las esqueléticas y guiar la planificación del tratamiento dirigido. [Traducción automática al español; idioma original: inglés.]Background/Objectives: To Develop a CBCT-based transverse diagnostic method that establishes normative buccolingual inclination values for permanent first molars and objectively distinguishes between dentoalveolar transverse deficiency and skeletal maxillary deficiency. Methods: A total of 1120 initial CBCT scans were reviewed, and 40 subjects with normal occlusion met the inclusion criteria. Volumes were reoriented using a standardized three-plane protocol, and molar angulations were measured relative to reference planes parallel to the occlusal plane. Intra- and inter-examiner reliability were assessed using ICC. Descriptive, comparative, and correlation analyses were performed bilaterally and between arches. Results: No significant right–left differences were observed for upper molar angulation (URM vs. ULM: 99.5° vs. 99.1°; t(19) = 1.560, p = 0.135) or lower molar angulation (LRM vs. LLM: 78.9° vs. 78.9°; t(19) = 0.301, p = 0.767). Non-parametric analysis confirmed these findings (ULM vs. URM: Z = −1.203, p = 0.229; LLM vs. LRM: Z = −0.427, p = 0.669). Significant positive bilateral correlations were observed in both arches (upper: rS = 0.784, p < 0.001; lower: rS = 0.837, p < 0.001). A significant negative correlation was found between upper and lower molar angulations (left side: rS = −0.626, p = 0.003; right side: rS = −0.858, p < 0.001), demonstrating dentoalveolar compensation. Conclusions: CBCT enables the precise assessment of molar buccolingual inclination and the establishment of normative patterns essential for transverse diagnosis. The proposed method allows the quantification of the maxillary “basal defect” after virtual dental decompensation, providing an objective tool to differentiate dentoalveolar from skeletal transverse discrepancies and guide targeted treatment planning.112747471enghttp://creativecommons.org/licenses/by-nc-nd/4.0/buccolingual inclinationcone-beam computed tomographydentoalveolar compensationmaxillary transverse deficiencymolar angulationorthodontic diagnosisskeletal discrepancytransverse diagnosisSkeletal discrepancyMaxillary transverse deficiencyTransverse diagnosisOrthodontic diagnosisMolar angulationCone-beam computed tomographyBuccolingual inclinationDentoalveolar compensationInternal MedicineClinical BiochemistryYesjournal articleopen access10.3390/diagnostics16071034https://www.scopus.com/pages/publications/105035515196https://www.scopus.com/pages/publications/105035515196#tab=citedBy