Tcdha Community Midterm Latest Exam With Complete Solutions (A+) 100% Verified 2025

3 main biotypes {Ans: 1. Thin scalloped biotype 2. Thick flat biotype 3. Thick scalloped biotype}Cairo classification RT1 (recession type 1) {Ans: Gingival recession w no interprox attachment. Likely associated with traumatic toothbrushing}Primary occlusal trauma {Ans: Injury resulting in tissue change from excessive occlusal force applied to a tooth or teeth with normal support Occurs in presence of: - normal bone level - normal attachment level - excessive occlusal force(s)}Decreased vestibular depth {Ans: • Gingival recession displaces the gingival margin apically reducing the vestibular depth}What is the progression of NPD? {Ans: - within days interdental areas are separated into 1 facial papilla & 1 lingual papilla w necrotic depression b/w them - craters formed within separation - when craters are formed PDL ligaments + alveolar bone become destroyed = loss of attachment}Aberrant frenum/ muscle position {Ans: Aberrant (abnormal) frenum can contribute to a distema, recession and muscle tension}