Abstract
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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
