Journal of Oral Implantology April 2013 - (Page 169)

CLINICAL A Simplified Technique for Solving the Transfer Problem of Implant-Supported Fixed Partial Dentures for Patients With Microstomia Bulent Uludag, DDS, PhD* Serdar Polat, DDS Volkan Sahin, DDS, PhD Emre Tokar, DDS Omer Ertug, DDS Techniques for treating a fully or partially edentulous patient with microstomia have been developed to overcome the challenge of accessing the oral cavity. Management of the problems associated with providing implant-supported fixed partial dentures for patients with microstomia has not been well reported. This article describes a solution for the transfer problem that occurs when making an impression of an implant-supported fixed partial dentures for patients with microstomia. Key Words: microstomia, implant-supported fixed partial denture, impression INTRODUCTION M icrostomia is defined as an abnormally small oral orifice.1 Microstomia may result from surgical treatment of orofacial neoplasms, cleft lips, maxillofacial trauma, burns, and radiotherapy.2 Microstomia can also occur as a result of genetic disorders, such as partial duplication of chromosome 6q,3 Hallopeau-Siemens–type recessive dystrophic epidermolysis bullosa,4 Freeman-Sheldon (whistling face) syndrome,5 Burton skeletal dysplasia,6 and such diseases as Plummer-Vinson syndrome or scleroderma.2 Prosthodontic treatment is more complex because of the reduced oral opening characteristic of fully or partially edentulous patients with microstomia.7 In particular, the initial difficulty in prosthetic rehabilitation is making the impression.8 Modified impression techniques, including the use of sectional impression trays, modified stock trays, and flexible Ankara University, Ankara, Turkey. * Corresponding author, e-mail: uludag@dentistry.ankara.edu.tr DOI: 10.1563/AAID-JOI-D-11-00021 impression trays, have been reported to overcome this difficulty.9,10 Also, several denture designs, including sectional11–13 and collapsible designs,7,14 have been used to overcome to prosthodontic challenges. The two segments of the collapsible dentures have been connected by using pins,15 using a locking tool,7 latching a swing-lock assembly,11 and locking the denture segments with magnets14 or attachments.16 Also, flexible denture materials may be used to ease insertion of prosthetics.17 Although implant-supported fixed partial dentures (FPDs) have been reported for microstomia patients,18,19 management of the problems associated with providing implant-supported FPDs has not been well reported. This article describes a solution for the transfer problem that occur in making impressions of implant-supported FPDs for patients with microstomia. TECHNIQUE 1. Make preliminary impressions of both arches with irreversible hydrocolloid (CA37, Cavex Holland B, Haarlem, Netherlands) using plastic mini stock Journal of Oral Implantology 169

Table of Contents for the Digital Edition of Journal of Oral Implantology April 2013

Evidence-Based Practice or Practice-Based Evidence?
Evaluation of Optimal Taper of Immediately Loaded Wide-Diameter Implants: A Finite Element Analysis
A Prospective, Randomized Controlled Preclinical Trial to Evaluate Different Formulations of Biphasic Calcium Phosphate in Combination With a Hydroxyapatite Collagen Membrane to Reconstruct Deficient Alveolar Ridges
Retention of Implant-Supported Overdenture With Bar/Clip and Stud Attachment Designs
The Clinical and Histologic Outcome of Dental Implant in Large Ridge Defect Regenerated With Alloplast: A Randomized Controlled Preclinical Trial
Fluoride-Treated Bio-Resorbable Synthetic Hydroxyapatite Promotes Proliferation and Differentiation of Human Osteoblastic MG-63 Cells
Resonance Frequency Analysis of 208 Straumann Dental Implants During the Healing Period
A Simplified Technique for Solving the Transfer Problem of Implant-Supported Fixed Partial Dentures for Patients With Microstomia
Esthetic Evaluation of Single-Tooth Morse Taper Connection Implants Placed in Fresh Extraction Sockets or Healed Sites
A Technique for Improving the Retention of Dentures Retained by Ramus Frame Implants
Treatment of Congenitally Missing Maxillary Lateral Incisors: An Interdisciplinary Approach
Use of Titanium Mesh in Lieu of a Fixation Screw to Stabilize an Autogenous Block Graft: A Case Report
A Novel Approach to Preserve the Buccal Wall in Immediate Implant Cases: A Clinical Report
Implant Failure Associated With Actinomycosis in a Medically Compromised Patient
Replacement of Mandibular Posterior Teeth With Implants in a Postmandibular Resection Case: A Case Report
Zygomatic Implants/Fixture: A Systematic Review
An Overview of Immediate Root Analogue Zirconia Implants
Letter to the Editor
Reviews of Current Literature

Journal of Oral Implantology April 2013