Vestibular deepening by the technique of Edlan and Mejchar

Deepening of the inferior labial vestibule was undertaken according to the technique of Edlan and Mejchar on 25 patients aged 17–55 years (X =). Observations were made at intervals, the total period ranging from (X =). Mean vestibular depth before operation was 2.24 ± 0.15 and post‐operatively 6.96 ± 0.23, the difference of 4.72 mm. was statistically significant (P < 0.01). Pre‐operatively the gingival state on the labial aspect of the mandibular central incisors showed a mean value of 2.28 ± 0.36 units and 0.90 ± 0.20 units post‐operatively. The difference was statistically significant (P < 0.01). The Plaque Index pre‐operatively was 1.70 ± 0.31 and 0.88 ± 0.20 post‐operatively (difference ‐ significant: P < 0.05). The correlation coefficient between the plaque and gingivitis scores before operation, r =+0.36, and post‐operately, r =+ 0.43 suggests that there was a definite relation which was strengthened as a result of the operation. It is concluded that when there is only a limited amount or no gingival tissue on the labial aspect of the mandibular anterior teeth, but no pockets the technique provides a predictable way in which gingival health can be achieved and maintained.