• The Journal of Advanced Prosthodontics
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• 제4권2호
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• pp.61-71
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• 2012

PURPOSE. To compare the changes in the occlusal vertical dimension, activity of masseter muscles and biting force after insertion of immediate denture constructed with conventional, tooth-supported and Implant-supported immediate mandibular complete denture. MATERIALS AND METHODS. Patients were selected and treatment was carried out with all the three different concepts i.e, immediate denture constructed with conventional (Group A), tooth-supported (Group B) and Implant-supported (Group C) immediate mandibular complete dentures. Parameters of evaluation and comparison were occlusal vertical dimension measured by radiograph (at three different time intervals), Masseter muscle electromyographic (EMG) measurement by EMG analysis (at three different positions of jaws) and bite force measured by force transducer (at two different time intervals). The obtained data were statistically analyzed by using ANOVA-F test at 5% level of significance. If the F test was significant, Least Significant Difference test was performed to test further significant differences between variables. RESULTS. Comparison between mean differences in occlusal vertical dimension for tested groups showed that it was only statistically significant at 1 year after immediate dentures insertion. Comparison between mean differences in wavelet packet coefficients of the electromyographic signals of masseter muscles for tested groups was not significant at rest position, but significant at initial contact position and maximum voluntary clench position. Comparison between mean differences in maximum biting force for tested groups was not statistically significant at 5% level of significance. CONCLUSION. Immediate complete overdentures whether tooth or implant supported prosthesis is recommended than totally mucosal supported prosthesis.

• The Journal of Advanced Prosthodontics
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• 제8권6호
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• pp.511-514
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• 2016

For patients with systemic diseases who face difficulties visiting dental clinics, wearing fixed partial denture in the anterior region on the same day of tooth extraction can reduce the total period of treatment and the number of visits, as well as post-treatment psychological effect on the patient.

• 대한치과보철학회지
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• 제55권3호
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• pp.331-335
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• 2017

잔존 자연치의 발치가 필요한 환자에서 즉시의치의 제작을 고려해 볼 수 있다. 즉시의치를 장착함으로써 환자가 무치악으로 지내는 기간 없이 심미 및 기능을 회복해줄 수 있는 장점이 있지만 인상 채득이 어렵다는 점, 장착 후의 결과를 예측하기 어렵다는 단점이 있다. 본 증례에서는 잔존 자연치를 모두 발치해야 하는 49세 남환에서 캠퍼그나 트레이를 이용하여 최종 인상을 채득하고 수술용 형판을 이용하여 발치 및 치조골 성형술을 시행한 후, 즉시의치를 제작 및 장착하여 심미적, 기능적으로 만족할 만한 치료 결과를 보였기에 이를 보고하고자 한다.

• The Journal of Advanced Prosthodontics
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• 제9권5호
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• pp.381-386
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• 2017

PURPOSE. To integrate extra-oral facial scanning information with CAD/CAM complete dentures to immediately rehabilitate terminal dentition. MATERIALS AND METHODS. Ten patients with terminal dentition scheduled for total extraction and immediate denture placement were recruited for this study. The patients were submitted to a facial scanning procedure using the in-office PritiMirror scanner with bite registration records in-situ. Definitive stone cast models and bite records were subsequently submitted to a lab scanning procedure using the lab scanner (iSeries DWOS; Dental Wings). The scanned models were used to create a virtual teeth setup of a complete denture. Using the intra-oral bite records as a reference, the virtual setup was incorporated in the facial scan thereby facilitating a virtual clinical evaluation (teeth try-in) phase. After applying necessary adjustments, the virtual setup was submitted to a CAM procedure where a 5-axis industrial milling machine (M7 CNC; Darton AG General) was used to fabricate a full-milled PMMA immediate provisional prosthesis. RESULTS. Total extractions were performed, the dentures were immediately inserted, and subjective clinical fit was evaluated. The immediate provisional prostheses were inserted and clinical fit, occlusion/articulation, and esthetics were subjectively assessed; the results were deemed satisfactory. All provisional prostheses remained three months in function with no notable technical complications. CONCLUSION. Ten patients with terminal dentition were treated using a complete digital approach to fabricate complete dentures using CAD/CAM technology. The proposed technique has the potential to accelerate the rehabilitation procedure starting from immediate denture to final implant-supported prosthesis leading to more predictable functional and aesthetics outcomes.

• Journal of Korean Dental Science
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• 제9권2호
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• pp.74-80
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• 2016

Even though an immediate denture (ID) is a practical prosthesis, fabricating an ID may be challenging, as unexpected removals of periodontally compromised teeth may occur during an impression procedure. This clinical report introduces a digital approach to a maxillary ID. An intraoral scanner was applied to prevent accidental extraction. A physical cast and a resin pattern of a framework were fabricated with rapid prototyping technology. A proper border and retention was also achieved by an altered cast impression.

• 대한치과보철학회지
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• 제62권2호
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• pp.104-112
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• 2024

다수 치아를 발치하면 환자는 사회적, 심리적, 심미적인 문제를 마주하게 된다. 이때, 치아를 발치하기 전 임시 즉시 의치를 제작하는 것을 통해 이러한 문제를 최소화할 수 있다. 특히, 디지털 기술을 활용해 임시 즉시 의치를 제작한다면 기공과정이 단순해 지고 환자의 적은 내원 횟수로 임시 즉시 의치를 완성할 수 있다. 한편, 소수의 잔존치가 남은 환자에서 고정성 임플란트 보철수복이 어렵고, 가철성 국소의치의 지지 및 유지가 불량할 것으로 예상되는 경우에 임플란트 지지 가철성 국소의치(Implant-supported removable partial denture)가 대체 치료 옵션으로 주목되며, 임플란트 보철물을 이용해 추가적인 지지 및 유지가 가능하다. 본 증례에서는 다수치아 발거 후 소수 잔존치 상황에서 디지털 기술을 활용해 임시 즉시 의치를 제작하였다. 이후 임플란트를 식립하고 서베이드 크라운을 제작해 가철성 국소의치의 지지, 안정, 유지를 제공하여 임상적으로 만족스러운 결과를 얻었기에 이를 보고하고자 한다.

• 대한치과보철학회지
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• 제8권1호
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• pp.117-118
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• 1968

• 대한치과보철학회지
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• 제41권4호
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• pp.493-502
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• 2003

Statement of problem : Removable partial denture and complete denture often require denture base relines to improve the fittness against tissue-bearing mucosa because of the gradual change in edentulous ridge contour and resorption of underlyng bony structure. Self-curing hard reline resins offers the immediate and relatively inexpensive means to be recondition the surface of denture base directly However weak bond between denture base resin and reline material can harbor bacteria, promote staining, or result in complete separation of the two materials. Purpose : The purpose of this study was to evaluate the effect of denture cleansers on bond strength and surface hardness of reline resin to denture base resin Denture base resin beams($60.0{\times}15.0{\times}3.0mm$) were made with Lucitone 199. Material and methods : 10mm section was removed from the center of each specimen. The samples were replaced in the molds and the space of l0mm sections were packed with Tokuso Rebase reline material. The specimens were immersed in denture cleansers (Polident, Cleadent) and were evaluated after 1 week, 2 weeks, and 4 weeks. The bond strength and surface hardness of self-curing hard reline materials to heat-curing denture base resin were measured using an UTM (universal testing machine). Results and conclusion : 1) There was no significant difference of usage, kind, and denture cleaner by application time on the bonding strength of self-curing hard reline resin to denture base resin. 2) There was no significant difference of usage, kind, and denture cleaner by application time on the surface hardness, but the surface hardness showed decreasing tendency, as the time of immersion was extended. 3) The failure modes of the specimens was initially adhesive failure and finally cohesive failure of self-curing hard reline resin.

• The Journal of Advanced Prosthodontics
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• 제4권1호
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• pp.52-56
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• 2012

Conventional implant protocols required a load-free healing period of three to six months between placement and functional loading of the implants. Many efforts have been made to minimize the duration of treatment time. Several literatures have documented immediate function with provisional or definitive prosthesis within a week of the placement in response to these demands. In addition, immediate implant placement has advantages such as shortened treatment time and preservation of soft tissue architectures. This article presents immediate implant placement into fresh extraction sockets followed by functional immediate loading with provisional prosthesis on canine and premolars for a patient having canine protected occlusion.

• 구강회복응용과학지
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• 제38권3호
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• pp.178-188
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• 2022

모든 잔존치의 발거를 계획한 환자의 경우 최종 보철 제작 전 무치악으로 지내는 기간을 최소화하기 위해 미리 임시 즉시 의치를 제작하게 된다. CAD/CAM 시스템을 이용하면 전통적 방식에서의 한계점들을 보완하여 진료실과 기공실에서의 제작 과정을 간소화 시킬 수 있다는 장점이 있다. 하지만, 환자의 악간관계에 관한 정보를 정확하게 기공실의 디지털 네트워크로 전달하는 과정에서 오차가 발생하여 교합관계가 불안정하거나 비심미적인 보철물이 제작될 빈도가 높다는 단점도 있다. 이러한 문제점을 극복하기 위해 간단하고 정확한 POP BOW 시스템의 교합평면 디지털 전이법을 이용하여, 상하악 전치부 잔존치 발거 후 심미적이고 기능적인 3D 프린팅 임시 즉시의치를 장착한 환자의 성공적인 증례를 보고하고자 한다.