Chapter 9. Restoration of Tooth Anatomy and Function
8 topics with a brief review: definitions, key facts, and classroom questions.
The ninth chapter is dedicated to the final and most critical stage of treatment—restoring the tooth's original morphology and masticatory efficiency. It compiles the fundamental principles without which high-quality conservative dentistry is impossible.
This section covers the clinician's entire workflow: from reliable operating field isolation and curing light characteristics to the use of matrix systems and reinforcement with post systems. You will study modern restoration techniques, biomechanical rules for recreating a tight contact point, and strict protocols for finishing and polishing restorations.
Practical classes and graded assessments most frequently test contact point restoration algorithms and matrix selection criteria. Pay special attention to errors in tooth filling—understanding the causes of postoperative sensitivity, overhanging margins, and chipping will help you avoid classic clinical failures at the start of your medical practice.
How many cotton rolls are needed for isolation of mandibular molars?
Two cotton rolls are required: one is placed on the buccal side (in the transitional fold), and the other in the sublingual area.
How to properly remove a matrix after amalgam condensation?
The matrix should be removed by gently pressing it against the adjacent intact tooth. This is necessary to avoid dislodging or damaging the freshly contoured yet not fully hardened filling.
Why is it necessary to shake the jar before dispensing glass ionomer cement powder?
The powder contains heavy metal oxides that settle to the bottom during storage. Shaking is necessary to obtain a homogeneous structure of the material before mixing.
Why is restoration performed in two visits when using chemically cured glass ionomer cement?
Glass ionomer cement hardens in 24 hours. Composite shrinkage upon immediate placement would cause the unpolymerized base to detach from the cavity floor.
How is the wax pattern of an inlay removed from the oral cavity using the direct method?
Using special notched orthodontic wire pins, which are heated and inserted into the wax, and then removed strictly along the path of insertion.
In what sequence is the fitting of an inlay carried out?
First, manufacturing accuracy and marginal fit are checked on the working gypsum model, and only after eliminating obvious interferences is the inlay tried in the oral cavity.
Master the entire topic in the «Propaedeutics of Dentistry» course
This is a summary. The course covers everything tested in classes and exams.
868 pages of study guides for all topics
Assignments and quizzes after every topic — just like in a colloquium