title: Evaluation of healing criteria for success after periapical surgery.
abstract: BACKGROUND
  In periapical surgery, the absence of standardization between different studies makes it difficult to compare the outcomes.
  
  
  OBJECTIVE
  To compare the healing classification of different authors and evaluate the prognostic criteria of periapical surgery at 12 months.
  
  
  METHODS
  278 patients (101 men and 177 women) with a mean age of 38.1 years (range 11 to 77) treated with periapical surgery using the ultrasound technique and a 2.6x magnifying glass, and silver amalgam as root-end filling material were included in the study. Evolution was analyzed using the clinical criteria of Mikkonen et al., 1983; radiographic criteria of Rud et al., 1972; the overall combined clinical and radiographic criteria of von Arx and Kurt, 1999; and the Friedman (2005) concept of functional tooth at 12 months of surgery.
  
  
  RESULTS
  After 12 months, 87.2% clinical success was obtained according to the Mikkonen et al., 1983 criteria; 73.9% complete radiographic healing using Rud et al. criteria; 62.1% overall success, following the clinical and radiographic parameters of von Arx and Kurt, and 91.9% of teeth were functional. The von Arx and Kurt criteria was found to be the most reliable.
  
  
  CONCLUSIONS
  Overall evolution according to von Arx and Kurt agreed most closely with the other scales.
authors.affiliation: Master of Oral Surgery and Implantology, Valencia University Medical and Dental School, Valencia, Spain. Miguel.Penarrocha@uv.es
authors.forename: Miguel
authors.initials: M
authors.lastname: Peñarrocha Diago
authors.forename: Bárbara
authors.initials: B
authors.lastname: Ortega Sánchez
authors.forename: Berta
authors.initials: B
authors.lastname: García Mira
authors.forename: Eva
authors.initials: E
authors.lastname: Martí Bowen
authors.forename: Thomas
authors.initials: T
authors.lastname: von Arx
authors.forename: Cosme
authors.initials: C
authors.lastname: Gay Escoda
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010486:Periapical Tissue / Q000601:surgery*; D016896:Treatment Outcome; D014945:Wound Healing