Table 5: Mean scores (SE) for subjective and objective TMD-related signs and symptoms. - SDA: shortened dental arch, RPD: mandibular distal extension removable partial denture. Table 6: Mean (SE) vertical and horizontal overlap (mm) at diﬀerent observation times. International Journal of Dentistry Pain - SDA + RPD - SDA - SDA previous RPD - Complete dentition Reported restricted mandibular mobility - SDA + RPD - SDA - SDA previous RPD - Complete dentition Reported clicking/crepitus - SDA + RPD - SDA - SDA previous RPD - Complete dentition Max. mouth opening (mm) - SDA + RPD - SDA - SDA previous RPD - Complete dentition Palpated clicking - SDA + RPD - SDA - SDA previous RPD - Complete dentition Vertical overlap SDA + RPD SDA SDA previous RPD Complete dentition Horizontal overlap SDA + RPD SDA SDA previous RPD Complete dentition Tooth type 15/25 16/26 17/27 Total Baseline 8 (11) 19 (30) 4 (15) 31 (56) Baseline 2.6 (0.4) 3.4 (0.2) 3.3 (0.3) 3.0 (0.2) 2.7 (0.7) 3.9 (0.6) 3.0 (0.0) — 3-year 6 (10) 15 (28) 5 (14) 26 (52) Baseline 0.1 (0.1) 0.2 (0.0) 0.2 (0.1) 0.1 (0.0) 0.0 (0.0) 0.0 (0.0) 0.2 (0.1) 0.0 (0.0) 0.2 (0.1) 0.3 (0.1) 0.3 (0.1) 0.2 (0.0) 48 (1) 50 (1) 48 (2) 51 (1) 0.2 (0.1) 0.2 (0.1) 0.3 (0.1) 0.2 (0.0) Observations 3-year 0.2 (0.1) 0.2 (0.1) 0.2 (0.1) 0.0 (0.0) 0.1 (0.1) 0.1 (0.0) 0.1 (0.1) 0.0 (0.0) 0.2 (0.1) 0.4 (0.1) 0.3 (0.1) 0.3 (0.1) 47 (1) 49 (1) 47 (2) 51 (1) 0.3 (0.1) 0.3 (0.1) 0.3 (0.1) 0.2 (0.0) Observations 6-year 0.2 (0.1) 0.2 (0.1) 0.2 (0.1) 0.1 (0.0) 0.1 (0.1) 0.1 (0.0) 0.0 (0.0) 0.0 (0.0) 0.3 (0.1) 0.3 (0.1) 0.1 (0.1) 0.2 (0.1) 46 (1) 48 (1) 50 (2) 50 (1) 0.4 (0.1) 0.4 (0.1) 0.2 (0.1) 0.2 (0.0) 6-year 3.6 (0.3) 3.5 (0.2) 3.2 (0.4) 3.4 (0.3) 3.6 (0.3) 3.8 (0.3) 3.4 (0.4) 3.6 (0.3) 5 9-year 0.0 (0.0) 0.1 (0.1) 0.1 (0.1) 0.1 (0.0) 0.1 (0.1) 0.0 (0.0) 0.0 (0.0) 0.0 (0.0) 0.2 (0.1) 0.2 (0.1) 0.1 (0.1) 0.2 (0.1) 46 (1) 48 (1) 48 (2) 49 (1) 0.3 (0.1) 0.1 (0.1) 0.2 (0.1) 0.2 (0.1) 9-year 3.6 (0.4) 3.3 (0.3) 3.2 (0.4) 3.5 (0.3) 3.8 (0.4) 4.0 (0.4) 3.6 (0.6) 3.3 (0.3) - not measured. SDA: shortened dental arch, RPD: mandibular distal extension removable partial denture. Table 7: Number of occlusal contacts between maxillary natural teeth and opposing denture teeth of the mandibular distal extension removable partial denture. In parentheses the potential number of occlusal contacts (opposing denture teeth present). aPercentage refers to the total of recorded occlusal contact and the potential number of contact per tooth type. 3-year 2.9 (0.4) 3.5 (0.2) 3.4 (0.3) 3.4 (0.3) 3.4 (0.4) 3.6 (0.3) 3.4 (0.4) 3.5 (0.3) Observations 6-year 7 (8) 11 (24) 3 (12) 21 (44) 9-year 5 (7) 8 (18) 2 (11) 15 (36) Combined observations 26 (36) 72%a 53 (100) 53% 14 (52) 29% 93 (188) 55%