title: Does Bone Grafting Improve Outcomes in Coronectomy Surgery? Long-Term (5- to 9-Year) Clinical and Radiographic Follow-Up of 78 Adult Patients.
abstract: OBJECTIVE
  To report the long-term outcomes of 78 adult patients who underwent coronectomy with bone grafting (CWG) of the bony crypt.
  
  
  METHODS
  Seventy-eight patients with follow-up of at least 5 to 9 years underwent CWG. Preoperative imaging and probing depths were recorded, as were yearly follow-up radiographs or cone-beam computed tomograms and yearly postoperative probing depths.
  
  
  RESULTS
  Periodontal probing depths and bone levels on the distal surfaces of adjacent mandibular molars showed marked improvement compared with preoperative probing depths and bone levels. All retained roots maintained their immediate postoperative positions with no migrations and no reoperations required.
  
  
  CONCLUSIONS
  CWG is a predictable procedure that should be considered for patients at risk for developing sensory disturbances or for those with deeper (>4 mm) preoperative probing depths on the distal surfaces of the adjacent molars. Adding bone graft appears to aid in preventing root migration and decreasing probing depths on the distal surfaces of adjacent molars.
authors.affiliation: Professor, Division of Oral and Maxillofacial Surgery, Western University of Health Sciences College of Dental Medicine, Pomona; Assistant Professor, Department of Oral and Maxillofacial Surgery, Loma Linda University Medical Center, Loma Linda, CA. Electronic address: jelo@westernu.edu.
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Elo
authors.affiliation: Dental Student, Western University of Health Sciences College of Dental Medicine, Pomona, CA.
authors.forename: Ho-Hyun Brian
authors.initials: HB
authors.lastname: Sun
authors.affiliation: Associate Professor and Biostatistician, Graduate College of Biomedical Sciences, Western University of Health Sciences, Pomona, CA.
authors.forename: Fanglong
authors.initials: F
authors.lastname: Dong
authors.affiliation: Resident, Department of Oral and Maxillofacial Surgery, Loma Linda University Medical Center, Loma Linda, CA.
authors.forename: Katina
authors.initials: K
authors.lastname: Nguyen
authors.affiliation: Chief Resident, Department of Oral and Maxillofacial Surgery, Loma Linda University Medical Center, Loma Linda, CA.
authors.forename: Kirollos
authors.initials: K
authors.lastname: Zakhary
mesh_terms: D000328:Adult; D016025:Bone Transplantation; D054893:Cone-Beam Computed Tomography; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D011861:Radiography, Dental; D012189:Retrospective Studies; D013997:Time Factors; D019228:Tooth Crown / Q000000981:diagnostic imaging* / Q000601:surgery*; D016896:Treatment Outcome; D055815:Young Adult