Preformed Metal Crowns as a Prosthetic Restorations in Pediatric Dentistry

Abstract

The preformed metal crowns (PMCs) are prefabricated constructions, used for restoring a severely broken teeth, affected by multisurfice carious lesions.The aim of the current study is to analyze and criticize the contemporary scientific conclusions related to indications, the usage methods, the advantages and disadvantages of the PMCs, used in the treatment protocol in pediatric dentistry.The subject of the analysis is 64 english language papers, published in the period from 1966 to 2017 y.The analysis shows that disadvantages of these restorations are related to the esthetics and previous preparation of the hard tooth tissues. The numerous advantages are related to the mechanical durability; the successful tightness concerning the non-operative sealing of caries and the prophylactic effect related to secondary caries lesion as well as the orthodontic jaw malformations, justify the usage of the PMCs in pediatric dentistry and also explain the need of scientific, clinical research in this domain.

Untitled

“…Because it is composed of metal elements, of course, this material has good physical properties and has better longevity than other metal restorations such as amalgam, so that it is more durable. This material also has moisture resistance and is not prone to fracture, making it suitable for use in the restoration of posterior primary teeth that require large chewing strength [11,13,16,17]. Behind its advantages, this material has several disadvantages.…”

“…Stainless-steel Crown is a restoration material with metal alloy as its main component. This gives them better physical properties and durability than amalgam restorations [16]. SSC also has a "full-coverage" concept that protects the entire tooth surface.…”

Questionnaire survey of removable prosthetic treatment in children

“…There are a number of scientific data available in world literature [21,22,23,24,25] which testify for the use of different types of ready-made and laboratory-made crowns, veneers and implant prosthetic restorations in patients under 16 years of age. In our country Dimitrov [26] review in details the treatment of carious defects by the use of preformed metal crowns with Hall technique. Other foreign authors [27,28,29] prove the successful recovery of the highly destroyed teeth with ready-made zirconium crowns.…”

Dentists’ Perception and Clinical use of Preformed Metal Crowns to Restore Primary Molar Defects in Chengdu City, China: A Cross-Sectional Study

“…4 Preformed metal crowns(PMCs), also known as stainless steel crowns (SSCs), are recommended for the enduring restoration for primary molars and the temporary restoration of the newly erupted rst permanent molars in different occasions, including severely decayed or fractured teeth, hypoplastic or hypomineralized teeth, primary molars after pulpotomy or pulpectomy procedures, teeth with extensive wear, abutments for space maintainers, and children with a high risk of caries treated under local anesthesia. 5 Compared with conventional therapeutic materials, PMCs prevent the development of caries by covering the entire dental crown surfaces and isolating the tooth structure from the oral microorganisms. Also, they exhibit greater longevity and fewer retreatment needs; thus, they constitute a preferred option for the restoration of primary molars.…”

“…Also, they exhibit greater longevity and fewer retreatment needs; thus, they constitute a preferred option for the restoration of primary molars. [5][6][7] PMC restoration is extensively accepted by dentists, children, and their parents in some developed countries, such as the UK and New Zealand. 8,9 However, to the best of our knowledge, reports on dentists' perception, clinical use as well as knowledge of PMCs are considered inadequate in China.…”