Search | Korea Science

REPLACEMENT OF POSTERIOR RESTORATIONS (구치부 수복물의 재수복에 관한 연구)

Kim, Ji-Young;Choi, Kyoung-Kyu;Park, Sang-Jin
- Restorative Dentistry and Endodontics
- /
- v.31 no.6
- /
- pp.460-469
- /
- 2006
This article complies a survey on the replacement of the posterior restorations and accesses possible factors that influence the replacement of posterior restorations. The data was collected from patients that visited department of conservative dentistry from Dec 1st 2003, to Sep 3rd 2004. Teeth was restricted to posterior permanent teeth. 9 dentists recorded age, gender of patients, tooth location, cavity farm and restorative material. They rated marginal adaptation, anatomic form, secondary caries of old restoration by modified Ryge criteria system. The statistical analysis was performed with Chi square test (p < 0.05) for replacement ratio according to patients, tooth factor and One way ANOVA was performed for comparison of old restoration according to restorative material. The results were as follows; 1. The female (62%) was statistically higher ratio than the male (38%). 2. The distribution of replacement case according to age, the rate of replacement was in descending order, 20's (38.3%), 40's (16.8%), 30's (15.9%), 10's (11.1%), 50's (9.2%), 60's (8.7%). 3. The rate of replacement was 88% for molar and 12% for premolar (p $gt; 0.05). 4. The rate of replacement was 39% for maxillar and 61% for mandible (p $gt; 0.05). 5. The material of restorations was amalgam (69%), gold inlay (17%), composite resin (13%). 6. In rating system by modified Ryge criteria system on margin adaptation, there was statistically significant difference between amalgam and gold inlay. But on anatomic form and caries, there was no statistically significant difference among the material of restorations.
https://doi.org/10.5395/JKACD.2006.31.6.460 인용 PDF KSCI

Titanium-zirconium alloy narrow-diameter implants for the rehabilitation of horizontally deficient mandibular posterior edentulous ridges (좁은 치조제를 가진 하악 구치부에서 지르코늄-티타늄 합금의 작은 직경 임플란트 사용 증례)

Lee, In Hye;Park, Young Bum;Han, Dong-Hoo
- The Journal of Korean Academy of Prosthodontics
- /
- v.55 no.2
- /
- pp.212-217
- /
- 2017
In case of the insufficient horizontal bone loss, a regular diameter implant is not possible without lateral bone augmentation. In this situation, narrow diameter implants (NDIs) could be the alternative to lateral bone augmentation procedures. However, complication generally expected with the NDI is implant fracture. Recently, the survival rate and success rate of NDI in the posterior region are similar to that of standard-diameter implants (SDIs). These 3 case reports demonstrate the incorporation of NDI to replace missing mandibular posterior teeth. So far, the follow-up examination period was maintained and no unusual complications were presented for more than four years. Long term follow-up clinical data are needed to confirm the excellent clinical performance of these implants.
https://doi.org/10.4047/jkap.2017.55.2.212 인용 PDF

Restoration of patient accelerating anterior teeth wear by loss of posterior support: Case report (구치부 지지 소실에 의한 전치부 마모 가속화 환자의 수복: 증례보고)

Choi, Hyejin;Lee, Jaehoon
- The Journal of Korean Academy of Prosthodontics
- /
- v.57 no.4
- /
- pp.382-388
- /
- 2019
Increased anterior teeth mastication following posterior teeth loss leads to greater anterior occlusal force. It may cause greater attrition of anterior teeth, traumatic force occlusion (TFO), also often followed by antagonist extrusion and occlusal disharmony. This clinical report describes the treatment for a 67-year-old female patient diagnosed with loss of both maxillary and left mandibular posterior teeth, severe attrition of maxillary and mandibular anterior teeth and extrusion of multiple teeth. A diagnostic cast was mounted on articular in centric relation (CR) position to evaluate vertical dimension (VD) and interspace. To provide adequate space for the prosthetic reconstructions, VD was increased by 3 mm on the anterior pin. And then diagnostic wax-up was completed upon that VD. Wax-up was converted to provisional restorations and verified in the patient's mouth and the final restorations were delivered. Clinical follow up examination held 3 months after temporary restoration owing to changes in vertical dimension revealed proper function in mastication without evidence of temporo-mandibular joint (TMJ) disorders. This clinical report presents successfully restoring severe attrition case with increasing vertical dimension resulting in satisfaction in esthetics and function.
https://doi.org/10.4047/jkap.2019.57.4.382 인용 PDF KSCI