Abstract
Objectives: The soft tissue characteristics of Bangladeshi adult were investigated in order to formulate cephalometric soft tissue norms using Holdway's angular and linear measurements and to compare the mean difference with the established value of Holdway's cephalometric soft tissue norms.
Materials and Methods: The hundred (100) standardized lateral cephalometric radiographs of Bangladeshi adults studied included 50 males and 50 females, with an average age of 20 years. The criteria of selection were Class I incisor relationship with no crowding, no skeletal abnormality, balanced facial skeletal profile and no previous orthodontic treatment. All cephalometric landmarks were located and determined and subsequently tracing had been done according to Holdway's analysis.
Results: The results showed that some measurements were significant at various levels: soft tissue facial angle (P < 0.001), soft tissue Sn to H line (P < 0.001), U/Lip thickness (P < 0.001), UL-A point (P < 0.05) and H angle (P < 0.05). Mean values of Holdway's cephalometric soft tissue norms of Bangladeshi adult were almost similar except for the convexity and soft tissue facial angle than the Holdway's established cephalometric soft tissue norms.
Conclusion: In summary, the results revealed that the face tends to be more straight in Bangladeshi female compared to Bangladeshi male. The changes in Holdway measurements in Bangladeshi adult showed similarities except for the convexity and soft tissue facial angle.