Background and objectives: A wide variety of procedures such as distraction osteogenesis, bone grafting and sinus floor elevation have been reported to place implants for the atrophic alveolar ridge. However, all patients could not always accept the installation of complicated devices, radical surgical procedure and the long term treatment plans. Therefore we have selected the cases which could adopt relative mild surgical intervention such as split crest or socket lift technique and tried to apply them to the atrophic alveolar ridge without any radical and complicated procedures. The aim of this paper is to make it clear the outline of minimally invasive implant surgery for the atrophic alveolar ridge through our clinical cases.
Methods: From June 1999 to May 2012, 60 patients underwent split crest or socket lift technique. AQB implant system (Advance Co. Ltd., Tokyo) was employed in this study. A total of 103 implants (split crest, 81 socket lift, 22) were placed with minimally invasive surgery.
Results: Nine implants were failed in the split crest patients (success rate 88.9%). Among the socket lift patients, one implant was failed (success rate 95.5%).The duration between implant placement and final restoration was less than 6 months in all cases.
Conclusions: The minimally invasive implant surgery could shorten the treatment period, cut the treatment cost, remove the fear of the surgical intervention and then made it easy to accept the informed consent to the implant surgery. Finally, the most significant point in this study was thought to be the criteria for the selection of the preferable cases.
Key words : split crest; socket lift; minimally invasive surgery.