• Journal of the korean academy of Pediatric Dentistry
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• v.48 no.2
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• pp.151-159
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• 2021

Since January 2019, insurance coverage for caries treatment of permanent teeth using composite resin in children aged 12 and under has started in South Korea. The purpose of this study was to compare the pattern of permanent molar composite resin restoration aged 12 and under before and after the insurance coverage from January 2009 to March 2020 in the Department of Pediatric Dentistry at Kyung Hee University Dental Hospital at Gangdong. Since the insurance coverage was started in 2019, the frequency of permanent molar composite resin restoration aged 12 and under has increased more than twice. There was a significant change in frequency of resin restoration by shape of cavity comparing before and after the insurance coverage, whereas there was no significant difference in changes by patient age, gender and position of tooth. As accessibility to the permanent tooth composite resin restoration is increased by the insurance coverage, which shows a fair survival rate, it is expected that it could be able to secure oral health in the early permanent dentition aged 12 and under.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.1
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• pp.91-95
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• 2009

The use of stainless steel crowns are indicated for restoration of primary or permanent molars with proximal dental caries, extensive dental caries, or previous pulp treatment with increased danger of tooth fracture. Stainless steel crowns were introduced by Humphrey in 1950. For their improved durability, longevity, and success rate, they have been strongly considered for restoring extensive and multi-surfaced dental caries of molars in pediatric dentistry. However, they also have shortcomings, such as possibility of pulpal exposure or damaging proximal surface of adjacent teeth. In addition, when oversized stainless steel crowns are used, eruption of the adjacent permanent teeth may be disturbed by their prominent margin. As a means to compensate the shortcomings of stainless steel crowns, use of orthodontics bands may be considered. It is an alternative restoration method, where an orthodontic band is placed on a tooth first and cavity is restored with filling material, such as composite resin, glass ionomer, or amalgam. The use of an orthodontic band is indicated for molar restoration with cervical dental caries, extensive dental caries, enamel hypoplasia, or previous pulp treatment. Because it requires shorter chair time compared to stainless steel crown, its application is very useful for children with poor behavior. However, restoration using an orthodontic band requires good oral hygiene after its application. This case report illustrates the conservative restoration of primary molars and permanent molars with extensive dental caries using orthodontic bands.

• Journal of the korean academy of Pediatric Dentistry
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• v.36 no.1
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• pp.78-83
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• 2009

In case of endodontic treatment and extensive restoration of severe dental caries, trauma, and developmental defect, esthetic restoration of primary incisors and permanent anterior teeth for children and adolescents period is delicate matter for pediatric dentists. Existing restorative methods for anterior teeth have retentive and esthetic limitations for badly damaged teeth, especially for the adolescent anterior teeth. Therefore, the preparative stage for setting the permanent prosthesis as well as the retention and esthetics have to be considered. In this case, esthetic restoration for badly destroyed anterior teeth was tried with fiber-reinforced post and the result was satisfactory.

• Restorative Dentistry and Endodontics
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• v.44 no.3
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• pp.27.1-27.12
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• 2019

This case report describes a technique in which endodontic treatment and permanent indirect restoration were completed in the same clinical appointment with the aid of a computer-aided design/computer-aided manufacturing (CAD/CAM) system. Two patients were diagnosed with irreversible pulpitis of the mandibular first molar. After access preparation, root canals were located, irrigation was performed until bleeding ceased, and the coronal tooth structure was prepared for indirect restoration. Then, utilizing an interim 3-mm build-up of the endodontic access cavity, a hemi-arch digital scan was performed with an intraoral scanner. Subsequent to digital scanning, restoration design was performed simultaneously with the endodontic procedure. The root canals were shaped using the Race system under irrigation with 2.5% sodium hypochlorite followed by root canal filling. The pulp chamber was subsequently filled with a 3-mm-thick composite resin restoration mimicking the interim build-up previously utilized to facilitate block milling in the CAD/CAM system. Clinical try-in of the permanent onlay restoration was followed by acid etching, application of a 5th generation adhesive, and cementation of the indirect restoration. Once the restoration was cemented, rubber dam isolation was removed, followed by occlusal adjustment and polishing. After 2 years of follow-up, the restorations were esthetically and functionally satisfactory, without complications.

• Journal of Korean society of Dental Hygiene
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• v.21 no.1
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• pp.89-98
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• 2021

Objectives: The purpose of this study was to investigate the perception and satisfaction of caregivers and parents after being covered by health insurance for light-curing composite resin fillings, and to contribute to the settlement of the expansion and coverage of health insurance. Methods: A survey was conducted on caregivers who visited two dental institutions in the Gyeonggi-do area, and parents who joined internet cafes (online communities) in the Gyeonggi-do area from June 2 to September 2, 2020. 225 responses were collected eventually, and 212 valid responses were used as analysis data. Results: 67.0% of the study subjects were aware of the permanent teeth resin fillings being covered by health insurance and the satisfaction was relatively high (91.5%). There was a statistically significant difference in the perception of permanent tooth resin filling benefits according to the child's oral condition (p=0.025) and the parents' own interest in oral health (p=0.039). Conclusions: Based on the results of this study, it is necessary to increase the accessibility to the initial treatment for dental care of children through active promotion of detailed items of permanent teeth resin fillings.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.5 no.2
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• pp.87-91
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• 2009

The purpose of this study were to investigate the chief complain and dental treatment needs in handicapped patient. This study examines treatment records of 1025 patients in free dental clinic for handicapped patients during 10 years from 1999 to 2008. The results were as follows : 5.8 average visit per patient; mean patient age was 25; 544 patients was younger than 20. Handicapped patients classified according to types of disability. Crippled disorder were 19.1%, brain disorder were 4.5%, visual disorder were 3.1%, auditory disorder were 4.1%, speech disorder were 0.9%, mental retardation were 67.1%, and developmental disorder were 25.1%. Performed treatments were 322 scaling, 13 fluoride varnish, 727 preventive resin restoration, 1296 resin restoration, 600 amalgam restoration, 46 GI restoration, 612 extraction, 289 pulp treatment of primary teeth, 75 pulp treatment of permanent teeth and 138 stainless steel crown restoration. Many handicapped patients have some difficulty to dental treatment. They have limited access to dental care, which is compounded by a shortage of skilled dental professionals who are willing to treat these population and financial problems.

• The Journal of the Korean dental association
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• v.58 no.4
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• pp.206-212
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• 2020

The infraocclusion is defined as a condition, in which teeth are present with their occlusal surface below the neighboring teeth, and long after, they reach occlusion. The most common cause of infra-occlusion is thought to be ankylosis. The treatment options for patient with infraocclusion of primary molars are observation, restoration and surgical removal of the affected teeth. We report a case of 8 - year - old boy who visited our clinic for consultation of orthodontic treatment. The patient was diagnosed by multiple infraoccluded primary molars with permanent successors. Surgical extraction were performed on primary molars. After follow-up of 7 months period, #44, 45 were erupted and the degree of posterior open bite was decreased.

• Restorative Dentistry and Endodontics
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• v.43 no.1
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• pp.9.1-9.6
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• 2018

The objective of this case report is to introduce a simple technique for simultaneously taking a closed-mouth impression and functionally generated path (FGP) for a full coverage crown restoration. A monolithic zirconia crown was the restoration of choice. An alginate impression of the abutment tooth was taken to fabricate a custom-made closed-mouth impression tray covering the abutment tooth and the adjacent teeth. The tray had an FGP table and an abutment tray in cameo and intaglio surfaces, respectively. The impression was taken with silicone impression material after adjusting the abutment tray and inscribing the FGP using self-curing acrylic resins. Plaster casts were made from the impression, and a zirconia crown was fabricated. The crown was cemented to the abutment tooth with minimal adjustments. This simple technique resulted in a well-fitting crown that accounted for mandibular movements. Using the custom closed-mouth impression tray incorporating an FGP table simultaneously aids in fabricating an accurately fitting restoration that incorporates harmonious mandibular movements using a single impression capture.

• The Journal of the Korean dental association
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• v.57 no.11
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• pp.679-688
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• 2019

A 8-year-old patient presented with a crown-root fracture of the maxillary right central incisor with an oblique subgingival fracture line. A multidisciplinary treatment approach including endodontic treatment, surgical extraction and intraalveolar repositioning was used to gain sufficient crown length of the fractured maxillary incisor. The coronally repositioned maxillary right central incisor was stabilized by a resin wire splint. Apexification using MTA was performed. Resin core and direct resin restoration(Cl IV) on fractured teeth was built up. Clinical and radiographic follow-up of the maxillary right central incisor after 36 months showed no signs of root resorption or pathology and acceptable aesthetics and functions were maintained. Surgical extrusion can be considered as a good treatment modality for young patients.

• Journal of the korean academy of Pediatric Dentistry
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• v.42 no.3
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• pp.249-256
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• 2015

Restorative dental materials have advanced rapidly, with improved physical properties that improve survival rates. Accordingly, various materials can be selected. Amalgam, composite resin, glass-ionomer cement, and preformed stainless steel crowns have all been used widely for the restoration of dental caries in primary molars. The various dental materials used to treat proximal caries in the primary molars have distinct advantages and disadvantages. However, few studies have examined their survival rates. This retrospective study examined the 2-year survival rates of more than 700 class II restorations of proximal caries in primary molars clinically and radiologically according to the type of restoration. The study results should help in the selection of class II restorations for molars, one of the biggest concerns of pediatric dentists.