Trap door: an alternative procedure to the triangular distal wedge for the elimination of distal periodontal pockets adjacent to edentulous areas.
Singh M, Stark PC, Damoulis PD, Levi P, Griffin TJ. Trap door: an alternative procedure to the triangular distal wedge for the elimination of distal periodontal pockets adjacent to edentulous areas. Compend Contin Educ Dent. 2012 Feb; 33(2):e38-44.