American Board of Orthodontics (ABO) Practice Exam 2026 - Free Orthodontics Practice Questions and Study Guide

Mutinelli's findings indicate that for each degree of inclination of the incisors, approximately 0.8mm of arch space is gained. This is an important concept in orthodontics as it highlights the relationship between tooth positioning and arch space, allowing orthodontists to plan treatments that optimize dental alignment and achieve better occlusion. This information is particularly valuable when considering the mechanics of tooth movement and how altering the inclination of teeth can affect overall arch dimensions.

Understanding this principle enables orthodontists to make informed decisions about tooth movement strategies and gain adequate space in the dental arch, which can be critical in various cases of malocclusion and space management.