Periapical surgery using ultrasonic preparation and thermoplasticized gutta-percha with AH Plus sealer or IRM as retrograde root-end fillings in 160 consecutive teeth: a prospective randomized clinical study.
OBJECTIVE
The aim of this study was to evaluate the healing outcome after periapical surgery with an ultrasonic cleaning technique in conjunction with the use of either of 2 different retrograde root-filling materials in teeth with apical periodontitis.


METHODS
One hundred sixty teeth in 139 consecutive patients were randomly allocated into 2 groups receiving either IRM or thermoplasticized gutta-percha (GP) with AH Plus sealer as a retrograde root-end seal. The patients were reviewed 12 months after surgery. The results were analyzed with Fisher exact test.


RESULTS
One hundred forty-seven teeth in 131 patients were reviewed. Radiologic evaluation and clinical examination showed an 85% success rate for the IRM group and 90% for GP group. There was no statistical significance between the 2 groups.


CONCLUSIONS
Both tested materials, IRM and GP, are suitable as retrograde root-end filling materials in conjunction with ultrasonic root-end preparation according to the results of the healing outcome after 12 months follow-up.
Wälivaara
Dan-Ake
DA
Maxillofacial Unit, Halmstad Hospital, Halmstad, Sweden. dan-ake.walivaara@lthalland.se
Abrahamsson
Peter
P
Sämfors
Kjell-Arne
KA
Isaksson
Sten
S
D000368:Aged; D001047:Apicoectomy; D004853:Epoxy Resins; D005260:Female; D006171:Gutta-Percha; D006801:Humans; D008297:Male; D008768:Methylmethacrylates; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000601:surgery*; D011446:Prospective Studies; D012184:Retrograde Obturation / Q000379:methods*; D012387:Root Canal Filling Materials; D018915:Root Canal Preparation / Q000379:methods*; D016896:Treatment Outcome; D014465:Ultrasonics; D015035:Zinc Oxide-Eugenol Cement
D004853:Epoxy Resins; D008768:Methylmethacrylates; D012387:Root Canal Filling Materials; D015035:Zinc Oxide-Eugenol Cement; C534916:epoxy resin-based root canal sealer; C031667:IRM cement; D006171:Gutta-Percha