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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 28, Issue 4 - Dec 2012
Volume 28, Issue 3 - Sep 2012
Volume 28, Issue 2 - Jun 2012
Volume 28, Issue 1 - Mar 2012
Selecting the target year
The Effect of Reinforcing Materials on the Transverse Strength of Denture Base Resin
Lee, Jun-Sik ; Song, Young-Gyun ; Cho, In-Ho ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 327~337
The object of this study was to find out the effect of various reinforcing materials including Quarts Splint
Mesh on the transverse strength of the denture resin. QC-20 and Lucitone199
were used as the denture resin, and polyethylene fiber Ribbond
, light curing quarts fiber Quarts Splint
Mesh, metal mesh were used as the reinforcing materials. Ten specimens were fabricated for each group and the size of specimens was
. To compare the effect of resin thickness, additional specimens of
were fabricated. In the control group, the transverse strength of Lucitone199
was significantly higher than that of QC-20(p<0.05). Among the specimens of 2.0 mm thickness fabricated with
and QC-20, they showed high transverse strength in the order of metal mesh, Quarts Splint
, and control group. In the specimens of 2.0 mm, 2.5 mm thickness, the transverse strength of Quarts Splint
Mesh were significantly higher than that of QC-20(p<0.05). But in the specimens of 3.0 mm thickness, there was no significant difference.
The Surface Characteristic Changes of Hydroxyapatite Coated Ti Disc When Immersed in NaCl Solution
Baek, Yeon-Wha ; Kim, Myung-Joo ; Kwon, Ho-Beom ; Lim, Young-Jun ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 339~347
In previous studies, methods for enhancing cellular response on the Hydroxyapatite coated implant surface were described. In this study, the changes of surface characteristics such as surface roughness, contact angle, surface energy and surface morphology were observed when Hydroxyapatite coated Ti discs were immersed in NaCl solution for various time. Hydroxyapatite coated Ti discs were immersed in 0.9% NaCl solution for 7, 14 and 21 days at
. The control group comprises dry identical discs not immersed in a solution. (n=3) All discs were dried in air completely and the surface roughness was measured using confocal laser scanning microscopy(CLSM). Static contact angle was recorded by video contact angle analyzer after dropping distilled water on the surface. The surface energy was calculated from contact angles of the three liquids. Surface was observed using a field emission-scanning electron microscope(FE-SEM). As a result, the surface roughness of immersed Hydroxyapatite coated Ti discs increased significantly and the contact angle decreased comparing with control group discs. The surface energy of immersed discs increased except for discs immersed for 14 days.
Morphological Analysis of the Sinus Lateral Wall Using Cone-Beam Computed Tomography
An, Seo-Young ; Kim, Yong-Gun ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 349~357
The purpose of this study was to measure the thickness of the sinus lateral wall using cone-beam computed tomography (CBCT), and to find the most suitable vertical position for lateral window opening prior to sinus elevation. Fifty three patients requiring sinus elevation had CBCT scans acquired by CB MercuRay (Hitachi, Medico, Tokyo, Japan) from July, 2010 to June, 2012. The thickness of the sinus lateral wall was measured according to its vertical position against the sinus inferior border (SIB), and its mean was calculated through two repeated measurements. The thickness of the sinus lateral wall was more than 2 mm at 2 mm above the sinus inferior border (SIB+2), however, it was less than 2 mm at 3 mm above the sinus inferior border (SIB+3). In conclusion, it is recommended that the inferior border of lateral wall window be made 3 mm above the sinus inferior border during sinus elevation using the lateral approach considering the thickness of the sinus lateral wall.
Complication and Failure Analysis of Endodontically Treated Teeth Restored with Post and Cores
Yun, Mi-Jung ; Kim, Mu-Hyon ; Jeong, Chang-Mo ; Huh, Jung-Bo ; Jeon, Yeong-Chan ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 359~370
The endodontically treated tooth is generally restored with post and core, owing to the brittle and the loss of large amount of tooth structure. The purpose of this study was to evaluate the clinical status of fixed prostheses to improve the quality of dental care. In order to assess the clinical status of fixed prostheses, a total of 101 individuals (aged 30-89, 66 women and 35 men loaded with 125 fixed prostheses) who treated in the Department of Prosthodontics, Pusan National University Dental Hospital, between January 1990 to December 2005 were examined. The results of this study were as follows: 1. Length of service of fixed prostheses was
years (mean), 11.1 years (median). 2. Age and sex of patient was found to have no statistically significant influence on longevity of fixed prostheses (P>.05). 3. Location of fixed prostheses was found to have statistically significant influence on longevity of fixed prostheses (P<.05). The longevity of fixed prostheses was low in anterio-posterior combination region (median:9.2 years). 4. Longevity of fixed prostheses made of base metal ceramic(median:12.0 years) and noble metal ceramic (median:11.3 years) is long (P<.05). 5. Number of units in fixed prostheses was found to have no statistically significant influence on longevity of fixed prostheses (P>.05). 6. Condition of opposing dentition was found to have no statistically significant influence on longevity of fixed prostheses (P>.05). 7. Dental caries, periapical disease, tooth fracture were frequent complications. In 51.9% of the cases, abutment state after removing fixed prostheses was needed to be extracted.
Comparative Study on the Ability of Instruments to Maintain Original Canal Curvature of Continuous rotary System and Single File System
Park, Sang-Hee ; Kim, Deok-Joong ; Song, Yong-Beom ; Lee, Hye-Yun ; Kim, Hyoung-Sun ; Lee, Kwang-Won ; Yu, Mi-Kyung ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 371~383
Shaping the root canal system to maintain original canal curvature is essential to clinical success in endodontic treatment. Opposed to most root canals that are curved, endodontic instruments are made from straight metal blanks. They have a tendency of straightening the root canal during preparation and frequently result in procedural errors. A new treatment method to maintain original canal curvature during shaping has been introduced for preventing procedural errors. The aim of this study was to compare the ability of instruments to maintain original canal curvature of continuous rotary system and single file system. Thirty ISO 15, 0.02 taper, Endo Training Blocks(Dentsplay Maillefer) were used. Specimens were assigned to 1 of 3 groups for shaping: specimens in group 1 were shaped with ProFile #20/.06 at the WL. Specimens in group 2 were shaped with Mtwo #35/.04 at the WL. Specimens in group 3 were shaped with WaveOne Primary reciprocating files at the WL after the glide path was achieved with PathFile. Pre- and postinstrumentation digital images were superimposed and processed with Matlab r2010b(The MathWorks Inc, Natick, MA) software to analyze the curvature-radius ratio(CRr), representing canal curvature modification. Data for comparison on the ability of instruments to maintain original canal curvature depending on each Ni-Ti file were analyzed with 1-way ANOVA(P<.05). Data for comparison on the ability of instruments to maintain original canal curvature depending on each Ni-Ti file system were analyzed with independent t-test(P<.05). A statistically significant difference(P<0.05) was noted on each Ni-Ti file. ProFile and WaveOne instrumentations maintained the original canal curvature significantly better(P<0.05) than Mtwo file. There were no significant difference(P>0.05) between continuous rotary system and single file system. Under the conditions of this study, ProFile and WaveOne instruments maintained the original curvature significantly better than Mtwo file and were less modification of the canal curvature compared. There was no significant difference between continuous rotary system and single file system in shaping of simulated canals. As clinical practitioners, it may be advantages to use hybrid approach when root canal shapes depending on the design and usage of Ni-Ti files.
Full Mouth Rehabilitation with a Overlay Denture
Ko, Kyung-Ho ; Kim, Dae-Gon ; Park, Chan-Jin ; Cho, Lee-Ra ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 385~395
This clinical report presents the case using overlay dentures to treat a patient with cleft lip and palate and malocclusion. This patient requires vigorous treatment such as orthodontic treatment and combined orthodontic/oral surgery procedures. Overlay denture can be used as an alternative treatment option. Intraoral and radiographic examinations were done. The vertical dimension of occlusion was evaluated for proper prosthetic procedures and the surveying in the diagnostic cast was done. Considering the tissue and teeth undercut, the alterations of teeth shape were done. Final preparation and impression was performed. After the evaluation of vertical dimension and occlusion with wax-denture, the dentures were polymerized. Clinical remounting and occlusal adjustment were done on the articulator. Overlay dentures were delivered and the patient was recalled for relining. The overlay dentures satisfied patient's esthetic and functional requirements and provided a stable occlusion. Overlay dentures in this case were a reversible and relatively inexpensive treatment for this patient, however the potential possibilities of caries and periodontal disease as a result of poor oral hygiene should be prevented with periodic recall.
Implant Supported Overdenture using Locator
System on Mandibular Edentulous Patient
Yu, Jung-Hyun ; Shin, Soo-Yeon ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 397~406
Loss of tooth results in remodeling and resorption of surrounding alveolar bone which causes atrophic edentulous ridge and gradually decreasing gingival attachment. As a result, edentulous patients face difficulty in using dentures due to pain, decrease of support, decline of masticatory efficiency of complete denture. To improve this, overdenture with implant in the mandible and attachment are considered as a treatment of choice as a favorable treatment. In this case, a patient with edentulous ridge for long period is rehabilitated by complete denture in maxilla and implant overdenture using Locator
attachment in mandible.
Orthodontic Traction of Multiple Impacted upper Anterior Teeth: Case Report
Tark, Myung-Hyun ; Cho, Jin-Woo ; Chang, Na-Young ; Cho, Jin-Hyoung ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 407~421
Orthodontic problems of the oral maxillofacial area could be classified into skeletal and dental problems. Dental problems might cause various occlusal disharmony and among them congenital missing or eruption failure might cause not only functional problems but also esthetic problems. Additional psychological problems are also one of the reasons for patients seeking treatment. In cases showing eruption failure of many teeth in the maxilla, not only occlusal and esthetic problems but also difficulty in alveolar bone maintainment could occur. Therefore, successive approach is necessary when multiple teeth show eruption problems. In this case, a patient with eruption problems of #13, 12, 11, 23, 43 was successfully treated by surgical exposure and successive orthodontic extrusion resulting perfect occlusion. By additional periodontal treatment, gingival recession that occurred along with teeth eruption was solved. The impacted right mandibular canine was erupted successfully only by natural arch expansion and leeway space without any special surgical treatment.
Implant Supported Fixed Restoration for Maxillary Edentulism using CAD/CAM Guided Implant Surgery (NobelGuide
) and Immediate Loading
Huh, Yoon-Hyuk ; Yi, Yang-Jin ; Kim, Dae-Gon ; Cho, Lee-Ra ; Park, Chan-Jin ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 423~439
This case report described a technique utilizing a computer-aided design (CAD)/computer-aided machining (CAM) - guided surgical implant placement and prefabricated temporary fixed prosthesis for an immediately loaded restoration. The advantages of CAD/CAM guided implant procedures are flapless, minimally invasive surgery and shorter surgery time. With this technique, less postoperative morbidity and delivery of prosthesis for immediate function would be possible. A patient with an edentulous maxilla received 8 implants in maxilla using CAD/CAM surgical templates. Prefabricated provisional maxillary implant supported fixed prosthesis were connected immediately after implant installation. Provisional prosthesis was evaluated for aesthetics, function during 6 months. Definitive implant supported fixed porcelain fused metal bridges were fabricated.
Management of Temporomandibular disorder
Jung, Da-Woon ; Chung, A-Young ; Kim, Seong-Taek ;
Journal of Dental Rehabilitation and Applied Science, volume 28, issue 4, 2012, Pages 441~452
Most of signs and symptoms of temporomandibular disorder(TMD) is temporary and self-limiting as other musculoskeletal diseases. Conservative, reversible treatment; self care, behavior modification, physical therapy, pharmacotherapy, splint therapy should be considered as initial treatment for temporomandibular disorder rather than non conservative, irreversible treatment.