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Volume 37 , Issue 6
November/December 2017
Pages 835–841

The Lip-Tooth-Ridge Classification: A Guidepost for Edentulous Maxillary Arches. Diagnosis, Risk Assessment, and Implant Treatment Indications

Adrien Pollini, DDS/Jack Goldberg, DDS, MS/Ricardo Mitrani, DDS, MSD/Dean Morton, DDS, MSD

PMID: 29023615
DOI: 10.11607/prd.3209

Prosthetic rehabilitation of the edentulous maxilla is known to be challenging and requires meticulous planning. The purpose of this article is to describe a novel classification system, the Lip-Tooth-Ridge (LTR), that offers a guidepost for treatment planning the edentulous maxilla for fixed or removable prostheses. This tool will help clinicians identify the final prosthetic design and will provide a case-specific risk assessment guide regarding two different areas. A high (HER) or low (LER) esthetic risk will be determined based on lip dynamics, as well as a high or low structural risk according to the prosthetic space availability.

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