The reliability of computerized condylar path angle assessment

TY - JOUR

T1 - The reliability of computerized condylar path angle assessment

AU - Schierz, O

AU - Klinger, N

AU - Schön, G

AU - Reissmann, D R

N1 - http://ijcd.quintessenz.de/index.php?doc=abstract&abstractID=31733

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Recording the track of the mandibular hinge axis and consequently ascertaining the posterior determinants is one of the key requirements for accurately simulating individual oral conditions in the (virtual) articulator. The aim of this study was to determine the reliability of computerized condylar path inclination angle (CPIA) measures and to assess whether the reliability depends on the mandibular dentition. Sagittal and transverse CPIA were measured using computerized axiography (Cadiax Compact 2) at two separate sessions in prosthodontic patients (mean age +/- SD: 64.3 +/- 10.3 years; female: 45%) who were classified into three dentition categories (fully dentate: N = 19, partially dentate: N = 27 and edentulous: N = 19). These measurements were repeated three times at both sessions without removing the computerized axiograph. Reliability was assessed in multilevel analyses using the subject as a grouping variable in linear random-intercept models. Considering all assessment procedures, the patient-specific differences explained 75% of the variance for the sagittal and 38% for the transverse condylar path. This corresponds to the overall reliability of both the sagittal and the transverse CPIA assessment. The dentition had no significant impact on the reliability of the measurements. The sagittal CPIA can be assessed with satisfactory reliability using computerized axiography. It is independent of the status of the dentition, which has no statistically significant impact on the measures. Transverse CPIA measurements have shown poor reliability. Therefore, the electronic determination of the sagittal CPIA is a reliable procedure that can be applied in patients irrespective of the status of the mandibular dentition.

AB - Recording the track of the mandibular hinge axis and consequently ascertaining the posterior determinants is one of the key requirements for accurately simulating individual oral conditions in the (virtual) articulator. The aim of this study was to determine the reliability of computerized condylar path inclination angle (CPIA) measures and to assess whether the reliability depends on the mandibular dentition. Sagittal and transverse CPIA were measured using computerized axiography (Cadiax Compact 2) at two separate sessions in prosthodontic patients (mean age +/- SD: 64.3 +/- 10.3 years; female: 45%) who were classified into three dentition categories (fully dentate: N = 19, partially dentate: N = 27 and edentulous: N = 19). These measurements were repeated three times at both sessions without removing the computerized axiograph. Reliability was assessed in multilevel analyses using the subject as a grouping variable in linear random-intercept models. Considering all assessment procedures, the patient-specific differences explained 75% of the variance for the sagittal and 38% for the transverse condylar path. This corresponds to the overall reliability of both the sagittal and the transverse CPIA assessment. The dentition had no significant impact on the reliability of the measurements. The sagittal CPIA can be assessed with satisfactory reliability using computerized axiography. It is independent of the status of the dentition, which has no statistically significant impact on the measures. Transverse CPIA measurements have shown poor reliability. Therefore, the electronic determination of the sagittal CPIA is a reliable procedure that can be applied in patients irrespective of the status of the mandibular dentition.

KW - Computer Systems

KW - Dental Articulators

KW - Dental Occlusion, Centric

KW - Female

KW - Humans

KW - Jaw Relation Record

KW - Jaw, Edentulous

KW - Jaw, Edentulous, Partially

KW - Male

KW - Mandible

KW - Mandibular Condyle

KW - Middle Aged

KW - Range of Motion, Articular

KW - Reproducibility of Results

KW - Temporomandibular Joint

M3 - SCORING: Journal article

C2 - 24791464

VL - 17

SP - 35

EP - 51

JO - INT J COMPUT DENT

JF - INT J COMPUT DENT

SN - 1463-4201

IS - 1

ER -