Kahl B, Schwarze C W
Klinik und Poliklinik für Zahn-, Mund- und Kieferheilkunde, Universität zu Köln.
Fortschr Kieferorthop. 1992 Jun;53(3):161-6. doi: 10.1007/BF02341451.
Posttreatment and seven to 28-year postretention records and actual questionnaires of 240 orthodontically treated patients were assessed to evaluate dental awareness and the patients evaluation of posttreatment changes. 80% have regular dental visits and 44% of them have periodontal disease whereas 60% of those who responded having irregularly or no dental controls. 38% were aware of posttreatment changes, only increased and decreased overjet showed a significance in patients evaluation and objective situation.
对240名接受正畸治疗患者的治疗后以及保持7至28年的记录和实际调查问卷进行评估，以评价牙齿保健意识以及患者对治疗后变化的评价。80%的患者有定期牙科就诊，其中44%患有牙周病，而在回复的患者中，60%没有定期进行牙科检查或从未检查过。38%的患者意识到了治疗后的变化，只有覆盖增加和减少在患者评价和客观情况方面具有显著性。
