phaidra.vetmeduni.ac.at o:2091 DOI 10.3390/vetsci9090481 Intra- and Interexaminer Measurement Variability Analysis of an Orthodontic Gauge Device to Determine Incisor Occlusal Surface Angles in the Horse Incisor malocclusions are common in horses. As yet, an evidence-based understanding of incisor occlusal surface angle dynamics and normocclusal range is missing. Orthodontic measuring devices could help unravel this information objectively but imply measurement validation. We evaluated intra- and interexaminer variability of repeated sagittal and transversal incisor occlusal surface angle measures using a commercial orthodontic gauge device (MaPHorse1). Five examiners (two experienced, three inexperienced) measured six cadaver heads on 2 consecutive days in a blinded block-randomization design, resulting in 16 measures per examiner*head. Sagittal and transversal angle measures revealed low intraexaminer variability at scale-level independent mean SDs of α 0.58° and α 0.69°, respectively. Sagittal angle measures associate with low interexaminer variability, showing small mean angle differences (max. α 0.51° ± 0.35°), small scatter, and more consistent data reproducibility. Despite comparable mean interexaminer differences, the spread of transversal angle measures was relevantly higher using the proposed landmarks (average 2.2-fold higher interquartile range). The measurement performance of experienced and inexperienced examiners did not systematically differ. The time required for individual measurements was already comparable after 24/96 repetitions. This instrument may help deciphering sagittal angle normocclusal range and orthognathic dynamics and, with a proposed procedural amendment, transversal angle as well. eng Beam Computed-Tomography; Landmark Identification; Equine Incisor; Reliability; Malocclusion; Disorders; Accuracy; Teeth 2023-09-08T12:20:46.359Z LOMv1.0 Author BEGIN:VCARD VERSION:3.0 N:Kau;Silvio; FN:Silvio Kau X-ORCID:https://orcid.org/0000-0001-9538-9976 END:VCARD BEGIN:VCARD VERSION:3.0 N:Hartl;Bettina; FN:Bettina Hartl X-ORCID:https://orcid.org/0000-0002-0259-1073 END:VCARD BEGIN:VCARD VERSION:3.0 N:Pellachin;Matteo; FN:Matteo Pellachin END:VCARD BEGIN:VCARD VERSION:3.0 N:Kunz;João R.; FN:João R. Kunz END:VCARD BEGIN:VCARD VERSION:3.0 N:Moser;Viktoria J.; FN:Viktoria J. Moser END:VCARD BEGIN:VCARD VERSION:3.0 N:Motter;Katharina S.; FN:Katharina S. Motter END:VCARD https://w3id.org/kim/hcrt/scheme https://w3id.org/kim/hcrt/text Textdokument Text LOMv1.0 yes https://creativecommons.org/licenses/by/4.0 application/pdf 879153 https://phaidra.vetmeduni.ac.at/o:2091 https://phaidra.vetmeduni.ac.at/api/object/o:2091/thumbnail LOMv1.0 discipline