Evaluation of the Modified True Vertical Line in Unilateral Complete Cleft Lip and Palate Patients
Makaleler > Tam Makale · 2016
Yazarlar: Işıl ARAS, Ayşe Burcu ALTAN, Servet DOĞAN, Enver YETKİNER
Turkiye Klinikleri Journal of Dental Sciences, Uluslararası, 2016, cilt 22, ss 97-103
DOI: 10.5336/dentalsci.2015-48304
Özet
Objective: To compare the facial anteroposterior projection parameters of unilateral complete cleft lip and palate (UCCLP) patients with non-cleft (NC) individuals having well-balanced faces using Arnett and Gunson Module and determine the capability of modified true vertical line (mTVL) to depict the true extent of retrognathism in UCCLP patients was aimed. Material and Methods: Arnett and Gunson Analysis was used in the evaluation of standard cephalometric headfilms of 30 UCCLP individuals and 30 NC patients with pleasing facial profile between the ages of 17-19 years, taken in natural head position. Projection values relative to true vertical line (TVL, in NC individuals) or modified true vertical line (mTVL, in UCCLP) were measured. Second measurements were done relative to a line that is parallel to the TVL/mTVL but passing through the geometric center of sella turcica (sTVL). Independent samples t-test was used to compare the projections values of the groups. Results: Significantly greater projection values were acquired for Gb, Or, CB, SP, NB, A, Mx1, Md1, LLA, Pog' (p≤0.0001), B' (p≤0.001) and NT (p≤0.05) distances in UCCLP patients (using mTVL) compared to NC individuals (using TVL). On the other hand, projection values of Or, SP, NT, Mx1, ULA (p≤0.0001), A (p≤0.001), NB, A'(p≤0.001) and Gb, CB, Md1, LLA (p≤0.05) showed significant inadequacies in UCCLP patients when measurements were carried out relative to sTVL. Conclusion: This preliminary study showed that mTVL obtained by carrying the subnasale point 3 mm forward was still deficient in varying amounts depending on the severity of the midfacial retrognathism.