Context: Zenith points are the most apical position of the cervical tooth margin where the gingiva is most scalloped. To establish the appropriate gingival zenith is of utmost importance in the field of esthetic dentistry. Any alterations in symmetry and gingival contour can significantly have impact on harmony of both natural and artificial teeth.
Aims: To measure the deviation of Gingival zenith (GZ) of maxillary anterior with the Vertical Bisected Midline (VBM) and Apico coronal displacement of lateral incisor zenith from Gingival Zenith Level (GZL) of central incisor and canine Settings and Design: 50 patient was enrolled in our study who satisfy the inclusion and exclusion criteria. Six maxillary anterior teeth was assessed for each subject and hence the total sample size was 300 teeth.
Methods and Material: For each subject alginate impression was taken and a diagnostic cast was made. Gingival zenith was marked for the six maxillary anterior teeth using method as done by Chu and Stappert. The deviation of gingival zenith point was measured from gingival zenith level and vertical bisected midline of each tooth. The data was tabulated and subjected to statistical analysis.
Statistical analysis used: The descriptive analysis was carried out. Mean and percentages were used to evaluate the deviation of gingival zenith
Results: Gingival zenith deviation was greater in Central Incisor 1.243±0.297mm and least in Canine 0.028±0.114mm. The mean apico-coronal displacement of gingival zenith of Lateral incisor was 1.024±425mm from gingival zenith level
Conclusion: Gingival zenith deviation is tooth dependent and distal to long axis
