Private office, São Carlos, SP, Brasil.
Department of Biomaterials, Universidad de los Andes, Santiago, Chile.
J Esthet Restor Dent. 2018 Jul;30(4):275-280. doi: 10.1111/jerd.12397.
To describe a novel technique that helps the clinician on promoting a midline diastema closure with appropriate width proportions based on previous wax up, avoiding excesses of the resin material on the gingival area, which could lead to possible inflammation.
Two different silicone indexes were made over a wax up to perform a diastema closure.
The use of a silicone index made with putty polyvinyl siloxane (PVS) material and another index made with putty and light PVS materials performed over a modified wax up, helped on achieving esthetically pleasant diastema closure with appropriate proportional widths, respecting the gingival tissue.
The use of a novel silicone index technique allowed for ensuring the same width for both upper central incisors in a midline diastema closure, improving gingival tissue's health.
The main difficulties regarding diastema closure are related to reaching an appropriate width proportion of the central incisors and avoiding a ledge at the gingival aspect of the contact area, which could become a plaque and food trap. This article describes, step-by-step, how to avoid such diastema closure issues, ensuring the width proportions of the upper central incisors.
描述一种新的技术，帮助临床医生在基于之前蜡型的基础上促进中缝间隙的关闭，并保持适当的宽度比例，避免过多的树脂材料堆积在牙龈区域，这可能导致炎症。
在蜡型上制作了两个不同的硅橡胶指数，以进行间隙关闭。
使用聚硅氧烷（PVS）基的腻子型硅橡胶指数和另一个由腻子和轻 PVS 材料制成的指数，应用于改良的蜡型上，有助于实现美观的间隙关闭，并保持适当的比例宽度，同时尊重牙龈组织。
使用新型硅橡胶指数技术可以确保在中缝间隙关闭时，上下中切牙的宽度相同，从而改善牙龈组织的健康。
中缝间隙关闭的主要困难与达到中切牙适当的宽度比例以及避免接触区域牙龈方面的凸起（龈缘）有关，因为这些凸起可能成为菌斑和食物的藏匿处。本文逐步描述了如何避免这些间隙关闭问题，确保了上中切牙的宽度比例。
