Internal oblique line implants in severe mandibular atrophies

• Argimiro Hernández-Suarez ^[1] ; Luis-Guillermo Oliveros-López ^[2] ; María-Ángeles Serrera-Figallo ^[3] ; Celia Vázquez-Pachón ^[4] ; Daniel Torres-Lagares ^[5] ; José-Luis Gutiérrez-Pérez ^[6]
  1. [1] DDS, OMS, MSc. PhD student at Dental School, University of Sevilla (Seville, Spain). Director of National Center of Oro-Maxillofacial Surgery and Implants CIBUMAXI, Caracas, Venezuela
  2. [2] DDS, MOS. PhD student at Dental School. University of Sevilla, Seville, Spain
  3. [3] DDS, MOM, MOS, PhD. Assistant Professor of Oral Surgery at Dental School. University of Sevilla, Seville, Spain
  4. [4] DDS, MOS and PhD student at Dental School. University of Sevilla, Seville, Spain
  5. [5] DDS, MOS, PhD. Full Professor of Oral Surgery at Dental School. University of Sevilla, Seville, Spain
  6. [6] DMD, OMS, PhD. Tenure Professor of Oral Surgery at Dental School. University of Sevilla, Seville, Spain. Head of Oral and Maxillofacial Surgery Service at Virgen del Rocio University Hospital, Seville, Spain

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• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 12, Nº. 12 (December), 2020, págs. 1164-1170
• Idioma: inglés
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• Resumen

  • Maxillary atrophy may be related to mechanical, inflammatory or systemic factors, being a consequence of a reduction in the amount and quality of available bone. Several surgical techniques have been developed for the restoration of bone volume needed for placing dental implants; guided bone regeneration or three-dimensional reconstructions with autologous bone, inter alia, are techniques described in the literature which demonstrate this, all of which preceded by a proper prosthetic surgical assessment. Even when the majority of authors recommend the use of these techniques prior to placing implants, it has been shown that implants with a smaller diameter and length may be placed in severely atrophied jaws without the need for performing any surgery, offering excellent results.

    Twenty-four (24) implants were placed in six patients with severe mandibular atrophy. The implants were placed in the anterior sector and on an internal oblique line. Patients were rehabilitated with a total implant-supported prosthesis, with monitoring over a 10-year period.

    After a 12-month monitoring period, all the patients presented successful rehabilitation. Marginal bone loss in general (n=24 implants) was +0.11 mm ± 0.53. In the implants in zones 1 and 4 (posterior) it was +0.06 mm ± 0.48 and in implants in zones 2 and 3 (anterior), +0.14 mm ± 0.57.

    Implants can be placed in the anterior zone and on an internal oblique line in patients with severe mandibular atrophy, using a diameter and length adapted to bone availability, for later prosthetic rehabilitation, offering satisfactory results since phonetic and masticatory function can be restored, as well as facial and buccal aesthetics, in a single surgical operation, with minimum morbidity.