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Posterior maxillary segmental osteotomy for mandibular implants placement: case report.

Jean-Paul Meningaud¹, Poramate Pitak-Arnnop, Laurent Corcos

¹University of Pierre and Marie Curie (Paris 6), Teaching Pitié-Salpêtrière Hospital, Paris, France. meningaud@noos.fr <meningaud@noos.fr>

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics

|October 21, 2006

Summary

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The loss of lower molars can cause upper teeth to shift, reducing space needed for implants. Posterior maxillary segmental osteotomy (PMSO) is a precise surgical technique to regain this essential interarch space for successful dental reconstruction.

Area of Science:

Oral and Maxillofacial Surgery
Orthodontics
Prosthodontics

Background:

Loss of mandibular molars can lead to maxillary dentoalveolar extrusion.
This extrusion reduces critical interarch space required for prosthetic reconstruction.
Insufficient interarch space compromises the outcome of dental implant placement.

Observation:

A case presenting with severe maxillary dentoalveolar extrusion due to mandibular molar loss is discussed.
The posterior maxillary segmental osteotomy (PMSO) was employed to address the reduced interarch space.
The technique requires precision to ensure a favorable surgical and occlusal outcome.

Findings:

PMSO effectively regained the necessary interarch space in the presented case.
Proper execution of PMSO is crucial for achieving good surgical results and optimal final occlusion.

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This technique facilitates prosthetic reconstruction in the edentulous area.

Implications:

PMSO is a valuable surgical option for managing maxillary dentoalveolar extrusion.
Regaining interarch space via PMSO is essential for successful mandibular implant placement and prosthetic rehabilitation.
The study highlights the importance of precise surgical techniques in complex dental reconstructions.