Change in the Gingival Margin Profile After the Single Flap Approach in Periodontal Intraosseous Defects.
BACKGROUND
The aim of the present study is to evaluate the association of patient-related and site-specific factors, as well as the adopted treatment modality, with the change in buccal (bREC) and interdental (iREC) gingival recession observed at 6 months after treatment of periodontal intraosseous defects with the single flap approach (SFA).


METHODS
Sixty-six patients contributing 74 intraosseous defects accessed with a buccal SFA and treated with different modalities were selected retrospectively. A two-level (patient and site) model was constructed, with the 6-month changes in bREC and iREC as the dependent variables.


RESULTS
(1) Significant 6-month increases in bREC (-0.6 ± 0.7 mm) and iREC (-0.9 ± 1.1 mm) were observed. (2) bREC change was significantly predicted by presurgery interproximal probing depth (PD) and depth of osseous dehiscence at the buccal aspect. (3) iREC change was significantly predicted by presurgery interproximal PD and the treatment modality, with defects treated with SFA in combination with a graft material and a bioactive agent being less prone to iREC increase compared to defects treated with SFA alone.


CONCLUSIONS
After buccal SFA, greater post-surgery increase in bREC must be expected for deep intraosseous defects associated with a buccal dehiscence. The combination of a graft material and a bioactive agent in adjunct to the SFA may limit the postoperative increase in iREC.
Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy.|Operative Unit of Dentistry, University Hospital, Ferrara, Italy.
Roberto
R
Farina
Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy.|Operative Unit of Dentistry, University Hospital, Ferrara, Italy.
Anna
A
Simonelli
Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy.
Luigi
L
Minenna
Department of Biomedical, Surgical, and Dental Sciences, University of Milan, Milan, Italy.|Institute for Inpatient Treatment and Scientific Studies Foundation, Ca' Granda Polyclinic, Milan, Italy.
Giulio
G
Rasperini
Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy.|Operative Unit of Dentistry, University Hospital, Ferrara, Italy.|Division of Periodontology, School of Dental Medicine, University of Connecticut Health Center, Farmington, CT.
Gian Pietro
GP
Schincaglia
Department of Periodontology, Institute of Odontology, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
Cristiano
C
Tomasi
Research Centre for the Study of Periodontal and Peri-Implant Diseases, University of Ferrara, Ferrara, Italy.|Operative Unit of Dentistry, University Hospital, Ferrara, Italy.
Leonardo
L
Trombelli
D000328:Adult; D000368:Aged; D010520:Aggressive Periodontitis / Q000601:surgery; D016301:Alveolar Bone Loss / Q000601:surgery*; D000539:Alveolar Process / Q000473:pathology; D018786:Bone Substitutes / Q000627:therapeutic use; D016025:Bone Transplantation / Q000379:methods; D055113:Chronic Periodontitis / Q000601:surgery; D003746:Dental Enamel Proteins / Q000627:therapeutic use; D005260:Female; D005500:Follow-Up Studies; D005881:Gingiva / Q000473:pathology; D005889:Gingival Recession / Q000209:etiology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010514:Periodontal Pocket / Q000601:surgery; D012189:Retrospective Studies; D013524:Surgical Flaps / Q000601:surgery*; D019237:Tooth Cervix / Q000473:pathology; D055815:Young Adult
D018786:Bone Substitutes; D003746:Dental Enamel Proteins; C109069:enamel matrix proteins
Alveolar bone loss; gingival recession; periodontitis; reconstructive surgical procedures; surgical flaps; wound healing