Study Notes

POLYCARBOXYLATE CEMENT  Use:. The primary use of polycarboxylate cement is as a cementing medium of cast alloy and porcelain restorations. In addition, it can be used as a cavity liner, as a base under metallic restorations, or as a temporary restorative material.  Clinical Uses Polycarboxylate cement is used in the same way as zinc phosphate cement, both as an intermediate base and as a cementing medium.  c. Chemical Composition.  …

Early Childhood Caries (ECC) Classification Early Childhood Caries (ECC) is a significant public health concern characterized by the presence of carious lesions in young children. It is classified into three types based on severity, affected teeth, and underlying causes. Understanding these classifications helps in diagnosing, preventing, and managing ECC effectively. Type I ECC (Mild to Moderate) A. Characteristics Affected Teeth: Carious lesions p…

Storage Media Rankings (Most Tested): Viaspan/UW solution - Gold standard HBSS - Laboratory ideal Milk - Practical choice Saliva - Emergency only Water - Contraindicated Critical Time Limits: Immediate replantation: <30 minutes (best prognosis) Acceptable delay: 30-60 minutes with proper storage Poor prognosis: >60 minutes Dry time: Should not exceed 15 minutes Splinting Guidelines: Duration: 1-2 weeks (flexible splinting) Typ…

COMPOSITE RESINS Applications / Use Anterior restorations for aesthetics (class III, IV, V, cervical erosion abrasion lesions) Low-stress posterior restorations (small class I, II) Veneers Cores for cast restorations Cements for porcelain restorations Cements for acid-etched Maryland bridges Repair systems for composites or porcelains Polymerization--reaction of small molecules (monomers) into very large molecules (polymers) Cross-linkin…

The Scalp The scalp consists of five layers of soft tissue. It extends from the superior nuchal line on the posterior aspect of the skull of the supraorbital margins. Laterally, the scalp extends into the temporal fossa to the level of the zygomatic arches.   Layers of the Scalp The scalp proper is composed of three fused layers. It is separated from the pericranium by loose connective tissue. Because of this potential areolar cleavage…