Retention of questionable and hopeless teeth in compliant patients treated for aggressive periodontitis

Christian Graetz (1) , Christof Dörfer (1) , Maren Kahl (1) , Thomas Kocher (2) , Karim M. Fawzy El-Sayed (1) , Jan Frederik Wiebe (1) , Konstantin Gomer (1) , Andreas Ruehling (1)

1 Clinic of Conservative Dentistry and Periodontology
2 Unit of Periodontology

Aim: The aim of the study was to determine the survival rates of questionable and hopeless teeth in patients with aggressive (AgP) and chronic periodontitis (CP) during 15 years of supportive periodontal therapy (SPT). Methods: 34 AgP and 34 CP patients (SPT≥10 years) with bone loss of ≥50% at ≥2 teeth were consecutively recruited. Bone loss was measured on digitized radiographs and teeth were categorized as "questionable" (≥50 to <70% bone loss) or as "hopeless" (≥70%). Progression in probing depths (PPD) during SPT, tooth loss and reasons for extraction were analyzed. Results: In AgP patients 262 teeth were considered as questionable and 63 as hopeless (CP: 149/51). During active therapy (APT), 25 questionable and 26 hopeless teeth were extracted (CP: 12/16). During 15.3±4.1 years of SPT of AgP, 28 questionable and 15 hopeless teeth were removed (CP: 28/12). Mean tooth loss per patient during SPT in total was 0.14 (AgP) and 0.16 (CP) teeth/year. There were no significant differences in tooth loss or longitudinal progression of PPD between AgP and CP patients. Conclusions: In patients with aggressive periodontitis 88.2% (209 of 237) of questionable and 59.5% (22 of 37) of hopeless teeth survived 15 years during regular SPT in a dental school department.

Mots clés: Medicine

Christian Graetz, Christof Dörfer, Maren Kahl, Thomas Kocher, Karim M. Fawzy El-Sayed, et al.. Retention of questionable and hopeless teeth in compliant patients treated for aggressive periodontitis. Journal of Clinical Periodontology, 2011, 38 (8), pp.707. ⟨10.1111/j.1600-051X.2011.01743.x⟩. ⟨hal-00646941⟩