Journal of Oral Implantology April 2014 - (Page 203)

CASE REPORT Occlusal Concepts Application in Resolving Implant Prosthetic Failure: Case Report Vanessa Helena Jamcoski, DDS1 Fernanda Faot, PhD2 Ivete Aparecida de Mattias Sartori, PhD1 ´ria Roge Acedo Vieira, DDS1 Rodrigo Tiossi, PhD1,3* The prosthetic management of a poor implant treatment is presented in this case report. The recommended occlusion concepts for implant-supported prostheses were applied for the resolution of the case. The rehabilitation of the posterior segments provided a mutually protected occlusion with adequate distribution of the axial and lateral bite forces with stable posterior occlusion. The clinical exam indicated the need for modification in the vertical dimension of occlusion. Sufficient interocclusal rest space was present to test the alteration in the vertical dimension. The aim was to achieve an occlusion scheme that followed four specific criteria: (1) centric contacts and centric relation of the jaw-to-jaw position; (2) anterior guidance only; (3) shallow anterior angle of tooth contact; and (4) vertical dimension of occlusion with acceptable tooth form and guidance. The success of an oral rehabilitation relies in following the aforementioned criteria, appropriate interaction between the dental laboratory technician and the clinician, careful elaboration of the provisional rehabilitation with all the desired details to be reproduced in the final prosthetic restoration and sufficient follow-up time of the provisional prostheses before placing the final restoration. Key Words: implants, prosthesis, occlusion, mutually protected occlusion, canine guidance INTRODUCTION T he importance of teeth occlusion was not fully understood in the early days of dentistry. Some authors suggested that food grinding was related with the masticatory surfaces of the opposing teeth. The concept of an optimal occlusal relationship was based on a bilateral muscle balance that provided adequate control of strength and pressure between the dental arches, according to the mandibular movements guided by the condyle path and by the occlusal surfaces of the opposing 1 Latin American Institute of Dental Research and Education, ´ ILAPEO, Curitiba, Parana, Brazil. 2 Department of Restorative Sciences, School of Dentistry, Federal University of Pelotas, Pelotas, Rio Grande do Sul, Brazil. 3 Department of Prosthodontics, School of Dentistry, Fluminense ´ Federal University, Niteroi, Rio de Janeiro, Brazil. * Corresponding author, e-mail: rtiossi@yahoo.com DOI: 10.1563/AAID-JOI-D-11-00164 teeth.1 In the early 20th century, clinicians began to apply the occlusal concepts based on the knowledge of the physiology of the masticatory system and its functional geometry and to recognize dysfunctional adaptations of occlusion.2 Understanding the principles of the mandibular movements, the transverse horizontal axis and the maxillomandibular relationships associated with the development of devices to record and transfer the maxillomandibular relationship to the dental laboratory has led to the rehabilitation of patients and to the recovery/maintenance of the good health of the stomatognathic system.3 However, the evolution of the occlusion principles has gone through different concepts among the following:4 bilateral balanced articulation;2 the concept of long centric articulation; the Bennett movement; the absence of contacts on the nonworking side; and the importance of establishing an anterior guidance at the beginning of an oral rehabilitation;5 the importance Journal of Oral Implantology 203

Table of Contents for the Digital Edition of Journal of Oral Implantology April 2014

Consolidated Standards of Reporting Trials (CONSORT): Answering the Call for JOI’s Endorsement
Photoelastic Analysis of Stress Distribution With Different Implant Systems
Influence of Abutment Screw Design and Surface Coating on the Bending Flexural Strength of the Implant Set
Comparison of Implant-Abutment Interface Misfits After Casting and Soldering Procedures
Evaluation of Accuracy of Casts of Multiple Internal Connection Implant Prosthesis Obtained From Different Impression Materials and Techniques: An In Vitro Study
The Effect of Different Implant-Abutment Connections on Screw Joint Stability
Effects of pH and Elevated Glucose Levels on the Electrochemical Behavior of Dental Implants
Finite Element Analysis of Provisional Structures of Implant-Supported Complete Prostheses
Saliva Versus Peri-implant Inflammation: Quantification of IL-1b in Partially and Totally Edentulous Patients
Heat Generated During Seating of Dental Implant Fixtures
An Alternative Approach for Augmenting the Anterior Maxilla Using Autogenous Free Gingival Bone Graft for Implant Retained Prosthesis
Nasopalatine Duct Cyst, a Delayed Complication to Successful Dental Implant Placement: Diagnosis and Surgical Management
The Custom Endosteal Implant: Histology and Case Report of a Retrieved Maxillary Custom Osseous-Integrated Implant Nine Years in Service
Occlusal Concepts Application in Resolving Implant Prosthetic Failure: Case Report
Three-Year Follow-Up of a Single Immediate Implant Placed in an Infected Area: A New Approach for Harvesting Autogenous Symphysis Graft
Use of Stress Analysis Methods to Evaluate the Biomechanics of Oral Rehabilitation With Implants

Journal of Oral Implantology April 2014