Prognostic factors of clinical outcomes in endodontic microsurgery: a prospective study.
BACKGROUND
This prospective study examined the potential prognostic factors of endodontic microsurgery and compared the predictors of an isolated endodontic lesion with those of both an isolated endodontic lesion and an endodontic-periodontal lesion.


METHODS
Data were collected from the Microscope Center of the Department of Conservative Dentistry at the Dental College of Yonsei University, Seoul, Korea, between March 2001 and March 2011. A total number of 584 teeth were included, and all clinical procedures were performed by a single operator (E.K.). The evaluation was performed at least 1 year after surgery. For statistical analysis of the predisposing factors, the chi-square test and logistic regression were performed.


RESULTS
Of the 584 cases treated, 431 cases came for recall after a period of at least 12 months. Sex (female), tooth position (anterior), arch type (maxilla), and lesion type (isolated endodontic lesion) were found to have a positive effect on surgical outcome. With regards to isolated endodontic lesions, the tooth position (anterior), arch type (maxilla), and type of restoration (single/splinted crown, short bridge, and removable partial denture abutment) were found to be pure positive predictors.


CONCLUSIONS
In endodontic microsurgery, it is likely that preoperative factors, particularly the tooth position and arch type, have a greater influence on the healing outcome than intra- and post-operative factors.
Department of Conservative Dentistry, Gangnam Severance Dental Hospital, College of Dentistry, Yonsei University, Seoul, Korea.
Minju
M
Song
Sahng Gyoon
SG
Kim
Seung-Jong
SJ
Lee
Baekil
B
Kim
Euiseong
E
Kim
D000328:Adult; D017607:Aluminum Compounds / Q000627:therapeutic use; D001047:Apicoectomy / Q000379:methods*; D017610:Calcium Compounds / Q000627:therapeutic use; D003442:Crowns; D000044:Dental Abutments; D003724:Dental Arch / Q000033:anatomy & histology; D003788:Dental Pulp Diseases / Q000601:surgery; D017220:Dentin-Bonding Agents / Q000627:therapeutic use; D004338:Drug Combinations; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008334:Mandible / Q000033:anatomy & histology; D008437:Maxilla / Q000033:anatomy & histology; D008768:Methylmethacrylates / Q000627:therapeutic use; D008866:Microsurgery / Q000295:instrumentation / Q000379:methods*; D008875:Middle Aged; D010087:Oxides / Q000627:therapeutic use; D010483:Periapical Diseases / Q000601:surgery; D059745:Piezosurgery / Q000295:instrumentation / Q000379:methods; D011379:Prognosis; D011446:Prospective Studies; D012184:Retrograde Obturation / Q000295:instrumentation / Q000379:methods; D012387:Root Canal Filling Materials / Q000627:therapeutic use; D017640:Silicates / Q000627:therapeutic use; D014070:Tooth / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult; D015035:Zinc Oxide-Eugenol Cement / Q000627:therapeutic use
D017607:Aluminum Compounds; D017610:Calcium Compounds; D017220:Dentin-Bonding Agents; D004338:Drug Combinations; D008768:Methylmethacrylates; D010087:Oxides; D012387:Root Canal Filling Materials; D017640:Silicates; D015035:Zinc Oxide-Eugenol Cement; C086631:mineral trioxide aggregate; C031667:IRM cement; C084074:Super EBA
Endodontic microsurgery; healing outcome; prognostic factors; prospective clinical study; tooth position