Conservative Dentistry

Window of Infectivity The concept of the "window of infectivity" was introduced by Caufield in 1993 to describe critical periods in early childhood when the oral cavity is particularly susceptible to colonization by Streptococcus mutans, a key bacterium associated with dental caries. Understanding these windows is essential for implementing preventive measures against caries in children. Window of Infectivity: This term refers to specif…

Supporting Cusps in Dental Occlusion Supporting cusps, also known as stamp cusps, centric holding cusps, or holding cusps, play a crucial role in dental occlusion and function. They are essential for effective chewing and maintaining the vertical dimension of the face. This guide will outline the characteristics, functions, and clinical significance of supporting cusps. Supporting Cusps: These are the cusps of the maxillary and mandibular teeth that m…

Primary Retention Form in Dental Restorations Primary retention form refers to the geometric shape or design of a prepared cavity that helps resist the displacement or removal of a restoration due to tipping or lifting forces. Understanding the primary retention form is crucial for ensuring the longevity and stability of various types of dental restorations. Below is an overview of primary retention forms for different types of restorations. 1. Amalgam…

Fillers in composite resin are inorganic particles that enhance the mechanical and optical properties of the material. They come in various sizes, shapes, and compositions. The choice of filler influences the resin's strength, wear resistance, and polishability. Types of fillers: - Silica: Common in microfilled and hybrid composites, providing good aesthetics and polishability. - Glass particles: Used in macrofill and microfill composites for high…

Liners Liners are relatively thin layers of material applied to the cavity preparation to protect the dentin from potential irritants and to provide a barrier against oral fluids and residual reactants from the restoration. Types of Liners 1. Solution Liners Composition: Based on non-aqueous solutions of acetone, alcohol, or ether. Example: Varnish (e.g., Copal Wash). Composition: 10% copal resin 90% solvent Setting Reactio…