Abstract
AIMS:
The aim of the study was to assess the degree of and correlation between facial hard and soft tissue asymmetry in patients with juvenile idiopathic arthritis, identify valid soft tissue points for clinical examination and assess the smallest clinical detectable level of dentofacial asymmetry.
MATERIAL AND METHODS:
Twenty-one juvenile idiopathic arthritis patients diagnosed according to the ILAR criteria participated in the study. Full-face cone-beam computed tomography scans and 3D photographs were used to measure and assess facial hard and soft tissue asymmetry with regression analysis. A survey of thirteen postgraduate orthodontic residents and five senior staff members of the Aarhus University’s Section of Orthodontics was also conducted to assess how asymmetry is observationally perceived based on cone-beam computed tomography scans and 3D photographs. Descriptive statistics was applied for the presentation of the survey results.
RESULTS:
Significant linear correlation was found between the hard and soft tissue gonia deviations at both the transverse and vertical positions (R2=0.486 and R2=0.535), while transverse asymmetries of the pogonion presented high correlation (R2=0.786). The occlusal plane canting and the vertical difference of the cheilion were correlated (R2=0.349). The occlusal plane canting was also correlated to the vertical asymmetry of the zygomatic processes (R2=0.470), while it was found to coincide with vertical hard tissue gonion deviations (R2=0.564). Transverse and vertical positions of the soft tissue gonion and cheilion were correlated (R2=0.313 and R2=0.446). Among medial soft tissue points, glabella was found to present the smallest deviation and the pogonion the largest deviation from the midsagittal plane.
The participants’ assessment of hard and soft tissue deviations in the survey was found to be in agreement with linear measurements when deviation exceeded ±2 mm.
CONCLUSION: Facial asymmetries are most pronounced at the lower facial third. Soft tissue pogonion and gonion were identified as the most appropriate landmarks to clinically assess the presence of facial asymmetry. Professionals can accurately identify asymmetry when this exceeds 2 mm.
The aim of the study was to assess the degree of and correlation between facial hard and soft tissue asymmetry in patients with juvenile idiopathic arthritis, identify valid soft tissue points for clinical examination and assess the smallest clinical detectable level of dentofacial asymmetry.
MATERIAL AND METHODS:
Twenty-one juvenile idiopathic arthritis patients diagnosed according to the ILAR criteria participated in the study. Full-face cone-beam computed tomography scans and 3D photographs were used to measure and assess facial hard and soft tissue asymmetry with regression analysis. A survey of thirteen postgraduate orthodontic residents and five senior staff members of the Aarhus University’s Section of Orthodontics was also conducted to assess how asymmetry is observationally perceived based on cone-beam computed tomography scans and 3D photographs. Descriptive statistics was applied for the presentation of the survey results.
RESULTS:
Significant linear correlation was found between the hard and soft tissue gonia deviations at both the transverse and vertical positions (R2=0.486 and R2=0.535), while transverse asymmetries of the pogonion presented high correlation (R2=0.786). The occlusal plane canting and the vertical difference of the cheilion were correlated (R2=0.349). The occlusal plane canting was also correlated to the vertical asymmetry of the zygomatic processes (R2=0.470), while it was found to coincide with vertical hard tissue gonion deviations (R2=0.564). Transverse and vertical positions of the soft tissue gonion and cheilion were correlated (R2=0.313 and R2=0.446). Among medial soft tissue points, glabella was found to present the smallest deviation and the pogonion the largest deviation from the midsagittal plane.
The participants’ assessment of hard and soft tissue deviations in the survey was found to be in agreement with linear measurements when deviation exceeded ±2 mm.
CONCLUSION: Facial asymmetries are most pronounced at the lower facial third. Soft tissue pogonion and gonion were identified as the most appropriate landmarks to clinically assess the presence of facial asymmetry. Professionals can accurately identify asymmetry when this exceeds 2 mm.
| Originalsprog | Engelsk |
|---|---|
| Publikationsdato | 2016 |
| Status | Udgivet - 2016 |
| Begivenhed | 92nd EOS Congress, Stockholm, 11-16 June 2016 - Stockholmsmässan in Älvsjö, Stockholm, Sverige Varighed: 11 jun. 2016 → 16 jun. 2016 http://www.eos2016.org/ |
Konference
| Konference | 92nd EOS Congress, Stockholm, 11-16 June 2016 |
|---|---|
| Lokation | Stockholmsmässan in Älvsjö |
| Land/Område | Sverige |
| By | Stockholm |
| Periode | 11/06/2016 → 16/06/2016 |
| Internetadresse |