• Journal of Dental Anesthesia and Pain Medicine
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• 제17권1호
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• pp.55-59
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• 2017

Digital dentistry has influenced many dental procedures, such as three-dimensional (3D) diagnosis and treatment planning, surgical splints, and prosthetic treatments. Patient-specific protective appliances (PSPAs) prevent dental injury during endotracheal intubation. However, the required laboratory work takes time, and there is the possibility of tooth extraction while obtaining the dental impression. In this technical report, we utilized new digital technology for creating PSPAs, using direct intraoral scanners and 3D printers for dental cast fabrication.

• 한국기계가공학회지
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• 제13권2호
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• pp.81-88
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• 2014

Synthetic products such as casting tape and splints are rapidly replacing conventional plaster casts to treat orthopedic patients. Most synthetic products are produced through a polymerization process with related chemical agents. In this study, the effect of the process parameters on the residual NCO content within a prepolymer for casting tape and the hardening temperature for casting tape were experimentally evaluated. In order to verify the effects of the process parameters, an experimental method was adopted. From an S/N ratio analysis, optimal parameter combinations were determined to produce a pre-polymer with a suitable residual NCO content and alower hardening temperature. Prediction models for the NCO content and the hardening temperature were developed and confirmed.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제46권5호
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• pp.367-368
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• 2020

• 구강회복응용과학지
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• 제22권1호
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• pp.23-27
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• 2006

This case reports describe a new approach to the use of polymers in orthodontics, using a fiber reinforced composite(FRC). FRC was successfully used in a periodontal splints, fiber post for endodontic use, orthodontic retainer and space maintainers, implant prosthesis, large span bridge, management of cracked tooth, anchorage reinforcement in orthodontics. FRC has highly favorable mechanical properties, and its strength-to-weight ratios is superior to those of most alloys. FRC has potential for use in many applications in dentistry and is expected to gain increasing application and popularity in dentistry. These case reports show that FRC is a promising anchorage reinforcement material for use in orthodontic practice.

• 대한치과보존학회:학술대회논문집
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• 대한치과보존학회 2001년도 춘계학술대회
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• pp.258-258
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• 2001

Fiber-reinforced materials have highly favorable mechanical properties. and their strength-to-weight ratios are superior to those of most alloys. When compared to metals they offer many other advantages as well. including non-corrosiveness. translucency. good bonding properties. and ease ofrepair. Fiber-reinforced materials can be categorized to pre-impregnated. impregnation required. dental laboratory products. chairside products and prefabricated posts. so it is not suprising that fiber-reinforced composites have potential for use in many applications in dentistry. Fiber-reinforced materials can be utilized in frameworks for crowns. anterior or posterior fixed prostheses. chairs ide tooth replacements. periodontal splints. customized posts. prefabricated posts. orthodontic retention. denture reinforcements and in implants dentistry. To realize the full potential of using fiber-reinforced composite restorations. it is essential that the clinician and laboratory technician understand concepts of tooth preparation and framework design. Also practitioner may appreciate the background information and other details about the materials themselves so that identify the rationale for their use in various clinical situations. select well-suited materials. and carry out related procedures. Understanding the material properties and take many attentions. fiber-reinforced materials will give more esthetic. more easy. more strong and more reliable restorations.ations.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2003년도 춘계학술대회논문집
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• pp.899-902
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• 2003

This study was tested for the bending stress analysis of hand spl int for Hemiplegic Patients. Hemiplegia was represented the stroke and the cerebral palsy. Hand splints of four materials was an Orthoplast hand splint, a Polypropylene hand splint, a Yogips hand splint and an Aluminum hand splint. The Stress Analysis system was made by the electronic oscilloscope, strain gage sensors, amplifier, A/D converter, PC with C program. It will be able to using the important data in spl int design. The results of analysis were obtained various different graphes and maximum data in an Orthoplast hand splint, a Polypropylene hand splint, a Yogips hand splint and an Aluminum hand spl int.

• Maxillofacial Plastic and Reconstructive Surgery
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• 제27권2호
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• pp.188-195
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• 2005

After making the surgical treatment plan, the surgical movements are duplicated in the model surgery. During this procedure, reference points and lines are drawn on the base of the models over the dental arch, and sawcuts are made according to these marked osteotomy lines. This method requires more accuracy for better postsurgical results in that the surgical splint which enables the surgeon to position the jaws intraoperatively is made from the casts as repositioned by the model surgery, and finally it will define the postsurgical results. This technique, however, has been found to be inexact, especially when the jaws are moved in several dimensions simultaneously. To overcome this, different methods have been developed for an accurate repositioning of the jaws as planned. A new appliance, Surgical Jaw Relator, was devised by the author for the simple 3-dimensional relocation of the upper and lower models, resulting in the easy construction of the splints such as centric relation splint, intermediate and final splint. This article describes an introduction and a clinical application of this appliance.

• Restorative Dentistry and Endodontics
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• 제7권1호
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• pp.33-40
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• 1981

The more civilized, the more incidence had happened in our daily life, particularly in industrial factories, by traffic accident, and in sports, etc. in the dental field. The accidental trauma is usually involved the teeth and surronuding tissues. And the author intended to study of the traumatic injuries of anterior teeth by individual tooth, age, sex, cause of trauma, and how they were treated. The following results were obtained: 1. The patients with traumatic injuries of the anterior teeth were 1.8% among the total dental out-patients. 2. By the age group, the twenties was most frequent in both sexes, and the teenagers next. 3. The predominant causes of traumatic injuries in the dental field were traffic accident (23.4%), fighting (19.2%), falling (18.5%), and sports (7.3%). 4. In the classification of injuries of the teeth, uncomplicated crown fractures (31.2%), subluxations (14.7%), and the complicated crown fractures (13.2%) were presented. 5. By the individual tooth in the traumatic cases, the upper cental incisors were most frequently injuried (49.8%). 6. In the treatments fillings and endodontic treatments (33.2%), splints (13.5%), extractions (11.7%) were main after care method.

• 대한소아치과학회지
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• 제44권2호
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• pp.194-199
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• 2017

본 연구의 목적은 탈구성 손상을 받은 유치에 시행한 고정술의 치료 결과를 분석하는 것이다. 본 연구는 2010년부터 2015년까지 탈구성 손상으로 본과에 내원하여 유치에 고정술을 시행한 92명의 환아들을 후향적으로 분석하였다. 이들 중에서 6개월 이상 추적 검사에 참여한 환아들을 대상으로 치료 결과를 분석하였다. 치료 결과는 검진 기간동안 임상 및 방사선 검사에서 합병증의 존재에 따라 분석되었다. 평균 나이는 42.1개월이었으며 67.4%가 남아였다. 넘어짐이 가장 빈번한 원인이었으며, 평균 고정 기간은 2.4주이었다. 고정술의 성공률은 58.9%이었다. 아탈구가 가장 높은 성공률을 보였으며, 측방 탈구에서 정복 후 고정술을 시행한 경우 가장 낮은 성공률을 보였다. 탈구성 손상에서 치수괴사가 가장 빈번히 발생한 비호의적 치료 결과이었다. 본 연구결과, 유치의 탈구성 손상에서 고정술은 받아들일 만하였으며, 고정술은 유치의 탈구성 손상시 치료법으로 고려될 수 있다.

• 구강회복응용과학지
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• 제26권2호
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• pp.169-178
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• 2010

연구목적 : 이 연구는 수직적 교합고경의 증가에 따른 사지 근력에 대한 영향을 관찰하고자 하였다. 연구재료 및 방법 : 평균 연령 21세의 10명의 남자를 선발하였다. 상악피개형의 교합장치를 제작하여 장치를 착용하지 않은 교두감합 (Intercuspal Position, ICP)시와 2mm, 3.5mm 그리고 5mm 수직적 교합고경을 증가시킨 위치에서 각각의 근력을 Cybex II dynamometer (Lumex Inc., Ronkonkoma, NY, USA)를 이용하여 측정하였다. 결과 : 측정한 14가지 동작 중 hip의 굴곡운동과 신전운동, forearm의 회외운동, shoulder의 내전운동, knee의 외전운동과 내전운동, ankle의 배측굴곡과 족측굴곡에서 교합장치의 장착시 근력의 유의한 증가를 보였다 (p<0.05). 결론 : 이 연구의 결과로 볼 때 수직적 교합고경을 증가시켰을 때 대부분의 동작에서 평균근력이 증가된다고 결론지을 수 있었다. 특히 3.5mm 수직적 교합고경을 증가시켰을 때 가장 높은 평균근력 증가율을 보였다.