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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Dental Rehabilitation and Applied Science
Journal Basic Information
Journal DOI :
Korean Academy of Stomatognathic Function and Occlusion
Editor in Chief :
Volume & Issues
Volume 31, Issue 4 - Dec 2015
Volume 31, Issue 3 - Sep 2015
Volume 31, Issue 2 - Jun 2015
Volume 31, Issue 1 - Mar 2015
Selecting the target year
Discrimination between FRC-post and core according to the color difference
Kim, Jou-Hwe ; Kim, Jin-Woo ; Cho, Kyung-Mo ; Park, Se-Hee ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 75~85
DOI : 10.14368/jdras.2015.31.2.75
Purpose: The purpose of this study is to evaluate which FRC-posts were more distinguishable from core. Materials and Methods: Nine extracted single-rooted mandibular premolars with similar lengths (
) and widths (
) were endodontically treated and obturated. One specimen which the three roots were embedded in a cold mounting resin was made. 3 specimens were made by this method. Post spaces were prepared for the following post system: FRC
. After three different posts were placed in the roots of a specimen, each three specimens received a direct core build-up:
Z350 A1E. Digital images were taken of the post and core with and without air-blowing. We asked to fifty dentists and fifty dental college students which post was more clearly discriminated from the core. Results: In surveys, when core was
Dual blue, among three types of posts people more easily discriminated the
from core. When core was
Dual A3, among three types of posts people similarly more easily discriminated
from core. When core was
Z350 A1E, among three types of posts people more easily discriminated distinguished MACRO-
post from core. People more easily distinguished MACRO-
post from core when temperature was lowered by air-blowing. Conclusion: Ability to discriminate between FRC-post and core is different according to color contrast. MACRO-
posts are more discriminable when temperature is lowered by air-blowing.
Signs and symptoms of temporomandibular disorders in instrumental performers
Jang, Jae-Young ; Choi, Young-Chan ; Bae, Jung-Hee ; Kim, Seong-Taek ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 86~95
DOI : 10.14368/jdras.2015.31.2.86
Purpose: The aim of the study was to evaluate the subjective symptoms and clinical signs through the TMD-questionnaire, clinical examination and radiography against the many instrumental performers and to investigate the association between playing instruments and TMDs. Materials and Methods: A total of 803 instrumental performers received TMD-related questionnaire and evaluations of prevalence and disease distribution were performed. Among those who reported at least one symptom of TMD, 70 volunteers visited in clinic then received clinical examination and radiography for diagnosis and evaluations of prevalence and disease distribution were performed. 70 subjects were divided into three groups as woodwind, brass wind, string. Comparative analysis of disease distribution was performed. Results: Among 803 instrumental performers, 610 people (75.97%) were reported to one or more symptoms of TMD. The most frequent symptom was click (29.68%).70 subjects underwent a clinical examination and radiography survey results, the most frequent symptom was a click (29.75%). Most commonly diagnosed disease was a myofacial pain (30.53%).Comparison of the three groups, a significant difference was not observed in the clinical sign. But among subject symptom, muscle pains howed significant differences in accordance with the Group (P = 0.024). During the 70 people who underwent clinical examination, 66 people (94.3%) showed moderate to severe attrition, mild to severe tongue ridging, mild to severe cheek ridging assigns of parafunction. Conclusion: Instrumental performers showed a high prevalence of TMD and the most of the musicians with temporomandibular disorder had bruxism or clenching habits.
Spectrophotometic analysis of the influence of substrate on the color of dental ceramics
Song, Young-Gyun ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 96~103
DOI : 10.14368/jdras.2015.31.2.96
Purpose: The purpose of this study was to spectrophotometrically evaluate the influence of porcelain layer thickness and substructure. Materials and Methods: Four groups of porcelain specimens (metal and ceramic substructure) was prepared for analysis. Color parameters were measured with spectrophotometer and color difference (
) were calculated. T-test and one-way ANOVA test were used to find out significant difference and Tukey test was used to identify where the difference ware. Results: Increasing the thickness of porcelain decreased values (P < 0.05). Increasing the thickness of porcelain on ceramic substructure decreased the
(P < 0.05) but, the
were not statistically different. Total color difference (
) were below 1 when the difference of porcelain thickness were 0.5 mm. Conclusion: The thickness of porcelain are the factor effecting on color. This study will help the color are controlled by changing the thickness of porcelain clinically.
A cone-beam computed tomographic study of C-shaped root and root canal in maxillary molars
Kim, Jin-Woo ; Ji, Hyo-Jin ; Cho, Kyung-Mo ; Kim, Sung-Min ; Park, Se-Hee ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 104~111
DOI : 10.14368/jdras.2015.31.2.104
Purpose: The aim of this retrospective study was to investigate the prevalence rate and types of C-shaped roots and C-shaped canal in maxillary molars by analyzing cone-beam computed tomography (CBCT) in a Korean population. Materials and Methods: Total of 357 CBCT images of maxillary molars (186 first molar, 171 second molar) were evaluated by two Endodontic specialists. Results: Eight types of C-shaped roots and 5 types of C-shaped canals were founded, the prevalence rate of C-shaped roots and canals were 21.0% and 5.3% respectively. Conclusion: These anatomical variations were more frequent in second molars than the first molars. Clinicians should have anatomical knowledge about various types of C-shaped root and root canal for successful root canal therapy.
Review of recent developments for intra-oral scanners
Choi, Jong-Hoon ; Lim, Young-Jun ; Lee, Won-Jin ; Han, Jung-Suk ; Lee, Seung-Pyo ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 112~125
DOI : 10.14368/jdras.2015.31.2.112
Making a model that is an accurate replica of the oral structure requires precision and efficiency. Nowadays, rapid technological advances bring digitalization in dentistry. One of the most important works in digital dentistry is three-dimensional modeling of the oral cavity and digitizing the 3D data. Among the three components of CAD/CAM, (1) data capture component (digitizers), (2) design component (CAD software), (3) manufacturing component (CAM), the basic component that has a significant impact on the other processes is the data capture component, i.e. intra-oral scanners. This literature review discusses the principles and clinical use of intra-oral scanners in dentistry based on recent publications of the past 5 years using the PubMed and Google Scholar databases.
Multidisciplinary approach of the problem of unaesthetic implants in the maxillary anterior dentition
Joo, Ji-Young ; Choi, Jeomil ; Lee, Ju-Youn ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 126~133
DOI : 10.14368/jdras.2015.31.2.126
Periodontal tissue destroyed by inflammation is difficult to achieve regeneration of the tissue and esthetic restorations only by surgical methods. In particular, improvement of esthetics is more difficult if the problem is related to the implant. A 23 year old woman suffered from unesthetic anterior implant prosthesis. According to her dental history, a repeated bone graft and soft tissue graft failed at a local dental clinic. It was needed to resolve the inflammation and to improve the esthetics. A free gingival graft and ridge augmentation accompanied by guided bone regeneration and a vascularized interpositional periosteal connective tissue graft was performed. Instead of implant prosthesis, a conventional fixed bridge was adopted for better esthetic result. The patient was satisfied with the esthetic conventional fixed prosthesis. This case report introduces esthetic rehabilitation of unesthetic implant prosthetics in the maxillary anterior dentition by a combination of surgical and prosthetic approaches.
Effect of supportive periodontal treatment in the oral lichen planus patients
Kwon, Eun-Young ; Choi, Jeomil ; Lee, Ju-Youn ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 134~142
DOI : 10.14368/jdras.2015.31.2.134
Lichen planus is an immune-mediated mucocutaneous disease, affects more frequently middle-aged Caucasian women and makes signs and symptoms in the oral mucosa. Cutaneous lichen planus lesions cause itching but they are self-limiting, oral lichen planus lesions are usually chronic, recalcitrant to treatment and potentially premalignant in some cases. Although, oral lichen planus is non-plaque related disease, they possess particular problems because plaque control is complicated by pain and bleeding and might cause plaque-related disease. The resulting condition comprises accumulations of plaque, which again can influence the progress of oral lichen planus with burning sensation, spontaneous gingival bleeding. Thus, it should be noted that both medication and supportive periodontal treatment are essential for the remission of the lesions. This case report introduces topical corticosteroid therapy and supportive periodontal treatment including intensive oral hygiene procedures to obtain an improvement of subjective symptoms and objective changes and to prevent relapse the lesions.
Esthetic restoration of malpositioned anterior teeth by tooth shape and gingival contour modification : a clinical report
Kim, Ja-Yeong ; Kim, Kyoung-A ; Seo, Jae-Min ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 143~149
DOI : 10.14368/jdras.2015.31.2.143
In esthetic treatments, it is important to consider the arrangement of teeth and the relation between the teeth and soft tissues. A precise diagnosis and establishing an appropriate treatment plan is essential in an esthetic treatment of anterior maxillary teeth. For a fixed prosthesis to meet esthetic expectations, It is crucial to achieve symmetry and adequate proportions of the gingival contour around the crowns. To achieve an esthetic improvement and creating a favorable environment for gingival healing of a physiologic gingival contour, gingivectomy, crown lengthening and forced eruption can be applied to the appropriate site. All ceramics or porcelain laminate veneer can be selected for esthetic improvement of teeth contour and shade. In this case report, malposition of the remaining teeth made it hard to get an esthetic appearance. Gingivectomy, crown lengthening and provisional restoration insertion were performed before the final prosthesis fabrication to reform the gingival form. This case presents satisfying result esthetically and functionally.
Clinical managements of implant periapical lesions: a report of three cases with five to twelve years of follow-up
Kim, Hyun Ju ; Park, Se Hwan ; Chang, Beom-Seok ; Um, Heung-Sik ; Lee, Jae-Kwan ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 150~157
DOI : 10.14368/jdras.2015.31.2.150
The purpose of this report is to suggest clinical managements of implant periapical lesions by presenting three clinical cases managed by either the infected form or the inactive form with the follow-up period of five to twelve years. One patient with no clinical symptom was regarded as inactive form. Two patients having pain were regarded as infected form and have been under the systemic antibiotic therapy. In one patient, the symptom subsided and the size of radiolucent lesion decreased. However, the other patient showed increased size of lesion causing the implant unstable, which leaded to remove the implant and to replace it. There was neither additional increase of the lesion nor functional problem for all three. It is important to detect implant periapical lesion in early stage before jeopardizing the stable implant and manage properly using systemic antibiotic therapy and surgical approach if needed, depending on infected form and inactive form.
Full mouth rehabilitation with dental implant utilizing 3D digital image and CAD/CAM system: case report
Kang, Se-Ha ; Jeong, Seung-Mi ; Shin, Jae-Ok ; Fang, Jeong-Whan ; Kim, Dae-Hwan ; Choi, Byung-Ho ;
Journal of Dental Rehabilitation and Applied Science, volume 31, issue 2, 2015, Pages 158~168
DOI : 10.14368/jdras.2015.31.2.158
This article describes how to use digital system in a fully edentulous case that diagnosis to definitive prosthesis fabrication. While proceeding oral scan and CBCT taking, digital markers were attached on maxillary palate and lower existing denture. Using CBCT image and oral scan image, the bone contour and anatomical structures were analyzed and flapless surgical guide, customized abutment and prosthesis were made. After the osseointegration, the definitive prosthesis was fabricated using the oral scan image with scan body. It provides clinicians with a fast workflow and improves clinical efficiency.