Clinical application study of immediate implantation without bone grafting in maxillary molars: a clinical study with one-year follow up

Br J Oral Maxillofac Surg. 2022 Apr;60(3):332-336. doi: 10.1016/j.bjoms.2021.07.023. Epub 2021 Aug 16.

Abstract

Our aim was to evaluate the clinical effect and feasibility of immediate implant placement combined with flap surgery with no bone grafting and non-submerged healing in the maxillary molar area. Thirty-five patients with failed single teeth in the molar area were selected. After minimally invasive extraction of the tooth, the flaps were elevated, and an implant inserted immediately; thereafter a healing abutment was connected. The mucoperiosteal flaps were sutured around the abutment without tension, and a permanent repair was performed six months later. During the study period, the implant survival rate, cone-beam computed tomography (CBCT) data, torque value, and the results of a subjective satisfaction survey conducted with a visual analogue scale (VAS), were evaluated to assess the procedure's therapeutic effect and feasibility. All 35 teeth were successfully implanted immediately after flap surgery. The mean (SD) torque value was 42.79 (5.70) N∙cm at the time of placement. During the six-month follow up and after one year of restoration, all 35 teeth showed no loosening, shedding of implants and restoration, or inflammation around the site. The mean (SD) value of the bony space around the implant immediately after the operation was 2.47 (0.56) mm. The bony spaces were filled with new bone after six months postoperatively. The mean (SD) VAS for satisfaction was 8.71 (1.05). Immediate implant placement combined with flap surgery without bone grafting and non-submerged healing is feasible for the maxillary molar area and produces a satisfactory clinical effect.

Keywords: Flap surgery; Immediate implant placement; Molar; Non-submerged healing; Without grafting.

MeSH terms

  • Bone Transplantation
  • Dental Implantation, Endosseous / methods
  • Dental Implants, Single-Tooth*
  • Follow-Up Studies
  • Humans
  • Immediate Dental Implant Loading* / methods
  • Molar / surgery
  • Tooth Extraction / methods
  • Tooth Socket / surgery