Two-stage maxillary expansion using polypropylene barrier: case report

Paul Christian Medina Llantoy, Nohemi Amelia Ticona Humani

Bone loss after extraction is inevitable. Due to the different factors relative to resorption and bone remodeling, bone ridge will undergo different changes in horizontal and vertical structures until it reaches atrophy, which is a challenge not only for Implantology, but also for Prosthodontics and Aesthetics. As an alternative to restore the natural anatomy of an atrophic maxilla in the region of teeth #11 and #12 of a female, 23-year-old patient, a two-stages surgery was carried out. In the first phase, a buccal flap was performed, followed by a U-shaped perforation up to the bone marrow. Subsequently, suture was carried out. Twenty-eight days later, a new flap was performed, but at the ridge only, without affecting the periosteum, so as to achieve buccal and palatal bone plates expansion. Afterwards, two Morse taper implants were simultaneously placed, covered with a polypropylene barrier, with closing of the incision performed by means of non-tension mattress suture. Fifteen days later, the barrier was removed, when granulation tissue was identified and then preserved for four months. Planned outcomes were achieved after a healing period, during which the patient was assessed clinically and tomographically. We concluded that the barrier used in the present study served as scaffold for bone neoformation and support for the placed implants, thus improving the three-dimensional aesthetics of the right, anterosuperior region of the patient.

Keywords: Bone regeneration. Polypropylene. Prostheses and implants. Tissue preservation. Granulation tissue.

How to cite: Llantoy PCM, Humani NAT. Two-stage maxillary expansion using polypropylene barrier: case report. J Clin Dent Res. 2017 Jan-Mar;14(1):90-7. DOI: http://dx.doi.org/10.14436/2447-911x.14.1.090-097.oar

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