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The International Journal of Oral & Maxillofacial Implants



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Int J Oral Maxillofac Implants 18 (2003), No. 4     15. July 2003
Int J Oral Maxillofac Implants 18 (2003), No. 4  (15.07.2003)

Page 566-570

Clinical Application of Zygomatic Implants for Rehabilitation of the Severely Resorbed Maxilla: A Clinical Report
Nakai, Hidetaka / Okazaki, Yasuhiro / Ueda, Minoru
Purpose: A zygomatic implant can be an effective device for rehabilitation of the severely resorbed maxilla. If zygomatic implants are used, onlay bone grafting or sinus augmentation would likely not be necessary. Where an anterior onlay bone graft is required, extension of the graft in the posterior region could be reduced. The results of the application of zygomatic implants in 9 patients and clinical evaluation of this therapy are reported.
Materials and Methods: Nine patients received a total of 15 zygomatic implants. Six to 8 months elapsed for healing before second-stage surgery was performed. Six months after prosthetic treatment, patients' opinions were solicited by means of a questionnaire.
Results: No implant was removed at the time of abutment connection surgery or during the follow-up period. In many cases, the zygomatic implant platform was located palatal to the alveolar ridge. However, no patients complained of any continuing speech impediment following superstructure fabrication. Computed tomograms taken before implant placement and 6 months after implant placement showed no sign of sinusitis in any patient.
Discussion: The zygomatic implant allows shorter treatment time and hospitalization. However, there can be some problems in the application of zygomatic implants.
Conclusion: It is necessary to investigate long-term clinical prognosis.