Relationship Between Histological Diagnosis and Evolution of 70 Periapical Lesions at 12 Months, Treated by Periapical Surgery

Carrillo, Celia; Peñarrocha, Miguel; Bagán, José Vicente; Vera, Francisco

doi:10.1016/j.joms.2007.12.014

« Previous Next »Journal of Oral and Maxillofacial Surgery
Volume 66, Issue 8 , Pages 1606-1609, August 2008

Relationship Between Histological Diagnosis and Evolution of 70 Periapical Lesions at 12 Months, Treated by Periapical Surgery

Celia Carrillo, DDS
- Student of Master of Oral Surgery and Implantology, Valencia University Medical and Dental School, Valencia, Spain.
Miguel Peñarrocha, DDS, PhD
- Professor of Oral Surgery, Director of the Master of Oral Surgery and Implantology, Valencia University Medical and Dental School, Valencia, Spain.
- Address correspondence and reprint requests to Dr Peñarrocha: Department of Oral Surgery, Facultad de Medicina y Odontología, Gascó Oliag 1, 46010 Valencia, Spain
José Vicente Bagán, DDS, PhD
- Professor of Oral Medicine, Valencia University Medical and Dental School, Department of Stomatology, Valencia University General Hospital, Valencia, Spain.
Francisco Vera, DDS, PhD
- Professor of Pathology, Faculty of Medicine and Dentistry, Valencia University; Chairman of Pathology II, “La Fe” University Hospital, Valencia, Spain.

Purpose

To relate the histologic diagnosis and radiographic size with the prognosis of 70 biopsies obtained via periapical surgery.

Materials and Methods

Seventy biopsies obtained during periapical surgery were histologically analyzed following curettage of the tissue, establishing the diagnosis as either apical granuloma, radicular cyst, or scar tissue. The radiographic size of the lesion (area in mm²) before surgery and after 1 year of follow-up was measured. The evolution at 12 months after surgery was evaluated according to the criteria of von Arx and Kurt. A statistical study was made, the inter-variable relationships were studied using analysis of variance with subsequent Tukey testing and calculation of Pearson correlation coefficient.

Results

Results indicated that 65.7% of lesions were granulomas, 25.7% scar tissue, and 8.6% cysts. The larger lesions had the worst prognosis. Cysts had the worst evolution at 12 months after surgery, this result being statistically significant.

Conclusions

The prognosis for the periapical lesion depended on the type of lesion and its radiographic size, with cysts and larger lesions having the worst evolution.