Location of the Wear, Interdisciplinary Workflow and Therapeutic Approach for Tooth Wear: LIT Classification

This article presents a guide for the rehabilitation of patients with dental wear using a minimally invasive approach. It provides a structured treatment sequence based on the location and extent of wear, the disciplines involved, and the therapeutic approach. The LIT classification establishes a relationship between the magnitude of the lesion and the appropriate type and material of restoration.

Tooth wear (TW) is a progressive, non-carious loss of dental structure caused by erosion, attrition, and abrasion, commonly affecting young patients. Its multifactorial origin and frequent association with other oral conditions demand complex, interdisciplinary management. Despite recent advances in diagnostic tools and treatment protocols, no existing classification integrates the extent and location of the wear and the specialties involved to treat the condition. This publication proposes a new system and structured approach to achieve predictable, conservative, and efficient oral rehabilitation.

Rehabilitating worn dentition requires precision, interdisciplinary planning, and tooth preservation. This LIT classification links TW magnitude to restoration type and extension, improving diagnosis, communication, and treatment predictability. It emphasizes minimal invasion, appropriate material choice, and a personalized approach, guided by wear extent, patient-specific factors, and the need for clear communication and biological preservation.

A structured treatment approach enhances predictability by aligning the clinician, team, and patient. Identifying pathology, integrating disciplines, and assessing TW are key to preserving dental structures and achieving long-term functional and esthetic success.