Versatility of Zygomatic Implants in Dental Rehabilitation for Patients Following Partial or Total Maxillectomy Procedures: A Prospective Study | [Journal of Neonatal Surgery • 2024]

Author(s):

1. Pradeep Devadoss: Department of Oral and Maxillofacial Surgery, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research

2. T. Srinivasa Prasad: Department of Oral and Maxillofacial Surgery, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research

3. J. Naveen Kumar: Department of Oral and Maxillofacial Surgery, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research

4. S. Jimson: Department of Oral and Maxillofacial Surgery, Meenakshi Ammal Dental College and Hospital, Meenakshi Academy of Higher Education and Research,

Abstract:

Maxillary defects resulting from partial or total maxillectomy due to ablative surgeries for neoplasms or infections present multifactorial challenges involving function, esthetics, phonation, mastication, and psychological well-being. Restoration in such cases is often complex, particularly when conventional prosthodontic and implant rehabilitation is unviable due to extensive bone loss and compromised anatomy. Zygomatic implants provide a unique anchorage solution through engagement in the dense zygomatic bone, circumventing deficient or absent alveolar structures. This prospective clinical study was conducted at Meenakshi Ammal Dental College and Hospital and included 20 patients (12 males, 8 females) presenting with either severely atrophic posterior maxilla or post-maxillectomy defects. A total of 32 zygomatic implants were placed using a combination of virtual surgical planning, trans-sinus, and extramaxillary techniques. Parameters assessed included primary and secondary implant stability (RFA/ISQ), osseointegration, peri-implant soft tissue health, prosthesis retention, patient-reported outcome measures (PROMs), and radiographic marginal bone loss over a 36month period. Outcomes revealed a 95% implant survival rate, with significant improvement in functional and psychosocial indices. The utilization of CBCT-based planning enhanced placement accuracy and reduced surgical complications. This study underscores the strategic role of zygomatic implants in rehabilitating maxillary defects, offering a predictable and long-term solution in advanced cases.

Page(s): 375-381

DOI: DOI not available

Published: Journal: Journal of Neonatal Surgery, Volume: 13, Issue: 0, Year: 2024

Keywords:

Dental Implants , Osseointegration , maxillectomy rehabilitation , transsinus approach , virtual surgical planning , Zygomatic implants , zygoma anchorage , implantsupported prosthesis

References:

[1] RP Desjardins .1978 .Obturator prosthesis design for acquired maxillary defects. J Prosthet Dent, 39(4) : 424-35.

[2] Lekholm U,Zarb GA,Brånemark PI,Prostheses PI .1985 .Patient selection and preparation. , : .

[3] Aparicio C,Ouazzani W,Garcia R .2014 .Zygomatic implants: indications, techniques and outcomes. Periodontol, 66(1) : 41-58.

[4] Chrcanovic BR,Abreu MH,Custódio AL .2013 .Zygomatic implants: a critical review of the surgical techniques. Oral Maxillofac Surg, 17(2) : 95-103.

[5] Malevez C,Abarca M,Durdu F,Daelemans P. .2004 .Clinical outcome of 103 consecutive zygomatic implants: a 6 - 48 months follow-up study. Clin Oral Implants Res, 15(1) : 18-22.

[6] Balshi TJ,Wolfinger GJ,Balshi SF .2009 .Zygomatic implants for the rehabilitation of maxillary defects: a comprehensive review. Int J Oral Maxillofac Implants, 24(5) : 865-872.

[7] Davó R,Malevez C .2010 .Indications for zygomatic implants: a systematic review. Int J Oral Maxillofac Surg, 39(9) : 783-790.

[8] Albrektsson T,Zarb G,Worthington P,Eriksson AR .1986 .The long-term efficacy of currently used dental implants: a review and proposed criteria of success. Int J Oral Maxillofac Implants, 1(1) : 11-25.

[9] Chrcanovic BR,Albrektsson T,Wennerberg A .2016 .Survival and complications of zygomatic implants: an updated systematic review. J Oral Maxillofac Surg, 74(10) : 1949-64.

[10] Krennmair G,Baumann A,Lugmayr H. .2007 .Clinical outcome of three different implant-retained overdentures in patients with severe maxillary atrophy. Int J Oral Maxillofac Implants, 22(2) : 251-256.

[11] Goiato MC,Dos Santos DM,Santiago JF .2015 .Psychosocial impact of zygomatic implant-supported rehabilitation. J Oral Rehabil, 42(9) : 668-676.

[12] Davó R,Felice P,Pistilli R .2013 .Immediate function with zygomatic implants: a 6-year prospective study. J Prosthet Dent, 110(4) : 267-272.

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