Maxillofac Plast Reconstr Surg.  2016 Jul;38(7):28. 10.1186/s40902-016-0074-0.

Posterior maxillary segmental osteotomy for management of insufficient intermaxillary vertical space and intermolar width discrepancy: a case report

• Baeg S
• On S
• Lee J
• Song S

• KMID: 2348901
• DOI: http://doi.org/10.1186/s40902-016-0074-0

Abstract

BACKGROUND
S: Insufficient intermaxillary space is caused by non-restoration following tooth extraction in the past, and this involves eruption of the opposing teeth and changes of the arch structure. Such cases are difficult just by a simple prosthetic approach, and diversified treatment plans should be established. Among these, posterior maxillary segmental osteotomy (PMSO) is an efficient treatment option than extraction of opposing teeth as it surgically repositions multiple erupted teeth and alveolar bone. PMSO can preserve the natural teeth; therefore, it is being regarded as a treatment method which can improve insufficient intermaxillary space significantly.
CASE PRESENTATION
In this case report, the first patient received PMSO in order to place an implant in the mandibular edentulous space after decreased vertical dimension is restored, and the second patient received PMSO along with orthodontic treatment to obtain the intermaxillary space and balance the interarch molar width.
CONCLUSION
PMSO is the treatment of choice when occlusion is compromised in the presence of decreased vertical dimension or arch length discrepancy.

Keyword

Insufficient vertical space; Prosthetic rehabilitation; Orthognathic surgery; Posterior maxillary segmental osteotomy

MeSH Terms

Humans
Methods
Molar
Orthognathic Surgery
Osteotomy*
Tooth
Tooth Extraction
Vertical Dimension