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조선대학교 치의학연구원> Oral Biology Research (OBR)> Effect of implant fixtures with blood pocket designed platforms on crestal bone

KCI등재

Effect of implant fixtures with blood pocket designed platforms on crestal bone

Jae-seok Kang , Byoung-eom Jung , Da-hyun Ko , Mee-kyoung Son
  • : 조선대학교 치의학연구원
  • : Oral Biology Research (OBR) 46권2호
  • : 연속간행물
  • : 2022년 06월
  • : 78-86(9pages)
Oral Biology Research (OBR)

DOI


목차

Introduction
Materials and Methods
Results
Discussion
Funding
Conflicts of Interest
ORCID
References

키워드 보기


초록 보기

The purpose of this study was to investigate the impact of an implant with a blood pocket designed platform on the crestal bone by analyzing the stress distribution upon simulated application of occlusal forces and assessing its clinical role in marginal bone loss surrounding the implant. Stress exerted on the cortical and cancellous bones of three different platform type implants (URIS, TSIII, and Astra EV) were analyzed using finite element analysis (FEA). A load of 150 N was applied at 0°, 45°, and 90° angles to the long axis of each implant, and marginal bone loss in the implanted URIS fixtures (blood pocket designed platform) after immediate and delayed loading was measured. FEA showed that the stress generated on the fixture upon loading of the URIS implant was lower than that of the other two implants. The URIS implant also exerted the lowest stress on the cortical bone upon application of vertical pressure at an angle of 0° to the long axis of the fixture. The mean marginal bone loss in the alveolar bone was 1.01±0.33 mm and 0.46±0.30 mm upon immediate and delayed loading, respectively. FEA also indicated that implants with blood pocket designed platforms exhibited better stress distribution in the implant fixture and cortical bone under vertical pressure when compared to the fixtures of other designs. The marginal bone loss observed one year after loading of the URIS implant in the current study was lower than that reported previously.

UCI(KEPA)

간행물정보

  • : 의약학분야  > 기초치의학
  • : KCI등재
  • :
  • : 계간
  • : 2508-2558
  • : 2508-2566
  • : 학술지
  • : 연속간행물
  • : 1978-2022
  • : 1487


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46권2호(2022년 06월) 수록논문
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The current study introduces photocurable macromolecular resin (KIS resin) and aims to assess its use as a basic material for implant surgical stent fabrication using 3D printing and the digital light processing (DLP) technique. The biological and physical properties of KIS resin were evaluated, and radiological analysis was performed to assess the clinical accuracy of a 3D-printed surgical stent. The physical characteristics were analyzed in accordance with the guidelines of certified standards, and cell adhesion analysis was performed to evaluate the viability of human gingival fibroblast (hGF) cells exposed to KIS resin and conventional orthodontic acrylic resin. Radiological analysis of animals was carried out by pairwise overlap of pre- and postoperative images. The physical characteristics of KIS resin met the ISO 20795-1, ASTM D695, and ASTM D638 standards. The hGF cells on KIS resin samples exhibited better cell attachment and connection compared to those exposed to conventional resins. The findings of the radiological analyses showed statistically significant differences in the deviations between DLP-printed surgical stents and conventional stents, with the horizontal linear deviations being smaller in the coronal and middle levels of the former. Moreover, the angular deviation was also smaller in the DLP stent group. Therefore, KIS resin exhibited favorable physical properties and cell viability, highlighting its potential for use as a basic material for 3D-printed implant surgical guides. Further evaluation of the use of implant surgical stents fabricated using KIS resin and the DLP method as a proper tool for implant placement with clinical utility should be carried out.

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저자 : Jae-seok Kang , Byoung-eom Jung , Da-hyun Ko , Mee-kyoung Son

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(기관인증 필요)

초록보기

The purpose of this study was to investigate the impact of an implant with a blood pocket designed platform on the crestal bone by analyzing the stress distribution upon simulated application of occlusal forces and assessing its clinical role in marginal bone loss surrounding the implant. Stress exerted on the cortical and cancellous bones of three different platform type implants (URIS, TSIII, and Astra EV) were analyzed using finite element analysis (FEA). A load of 150 N was applied at 0°, 45°, and 90° angles to the long axis of each implant, and marginal bone loss in the implanted URIS fixtures (blood pocket designed platform) after immediate and delayed loading was measured. FEA showed that the stress generated on the fixture upon loading of the URIS implant was lower than that of the other two implants. The URIS implant also exerted the lowest stress on the cortical bone upon application of vertical pressure at an angle of 0° to the long axis of the fixture. The mean marginal bone loss in the alveolar bone was 1.01±0.33 mm and 0.46±0.30 mm upon immediate and delayed loading, respectively. FEA also indicated that implants with blood pocket designed platforms exhibited better stress distribution in the implant fixture and cortical bone under vertical pressure when compared to the fixtures of other designs. The marginal bone loss observed one year after loading of the URIS implant in the current study was lower than that reported previously.

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초록보기

Pathologically progressive dental wear can cause dentin damage and pulp disease; it can even lead to tooth loss. The patient described herein, a 60-year-old male, had a decrease in vertical dimension due to severe abrasion of his remaining teeth and loss of his posterior teeth. The pattern of wear and its causes were evaluated, after which an appropriate vertical dimension and a repeatable centric relation position were considered. A full-mouth rehabilitation by increasing the vertical dimension was planned for the patient. His posterior bite support, wear history, facial features, interocclusal distance, and pronunciation were evaluated to determine the appropriate intermaxillary relationship and vertical elevation. Afterwards, full-mouth rehabilitation was completed using a monolithic zirconia prosthesis. The patient adapted well to the increased vertical dimension and the final prosthesis, had no complaints, and was aesthetically satisfied.

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다운로드

(기관인증 필요)

초록보기

Tooth autotransplantation refers to tooth transplantation from the donor to the recipient site of the same individual. Occasionally, there are situations where autotransplantation cannot be carried out immediately at clinic. In such cases, donor teeth cryopreservation is necessary to overcome limited indications. Cryopreservation media and nutrients play essential roles in preserving the periodontal ligament cells' activity. Several studies have focused on cryopreservation media and nutrients. Platelet-rich plasma (PRP) contains lots of growth factors without inducing immunologic responses or pathologic complications. Therefore, self serum and PRP might be positive factors in the cryopreservation process for preserving the periodontal ligaments (PDLs) viability. In this study, beagle dog's incisors were cryopreserved for three months in different cryopreservation media, including Dulbecco's modified eagle medium (DMEM, containing DMSO), DMEM+20% self serum, DMEM+20% self serum+PRP, and DMEM+20% fetal bovine serum (FBS). Histological results revealed that DMEM+20% self serum+PRP and DMEM+20% FBS groups showed significantly less root resorption and higher regeneration of periodontal ligament cells and that PRP is a positive factor in the cryopreservation process to preserve PDLs viability. Therefore, cryopreservation media with PRP will be a good periodontal tissue regeneration option after long-term cryopreservation in a tooth autotransplantation procedure.

KCI등재

2Physical and biological assessment of a novel resin for digital light processing

저자 : Jung-hyuk Lee , Seong-jun Ham , Jin-wook Shin , Cheol-woong Jeong , Jeong-in Choi , Young-joon Kim

발행기관 : 조선대학교 치의학연구원 간행물 : Oral Biology Research (OBR) 46권 2호 발행 연도 : 2022 페이지 : pp. 61-70 (10 pages)

다운로드

(기관인증 필요)

초록보기

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KCI등재

3Repetitive prestretching decreases hysteresis and abrupt force drops during the initial unloading phase of orthodontic elastomeric chains

저자 : Jae-chan Jung , Sung-hoon Lim , Seo-rin Jeong

발행기관 : 조선대학교 치의학연구원 간행물 : Oral Biology Research (OBR) 46권 2호 발행 연도 : 2022 페이지 : pp. 71-77 (7 pages)

다운로드

(기관인증 필요)

초록보기

This study evaluated the effect of repetitive prestretching on hysteresis and abrupt force drops during the initial unloading phase (1-mm-unloading/peak force ratio) of elastomeric chains. Thirty samples of closed-type elastomeric chains were tested for each group of generation II power chain, energy chain, and memory chain. Elastomeric chains were elongated to a 100% extension from their original length of 12.5 mm and unloaded. Forces during the five loading and unloading cycles were determined. The memory chain showed significantly lower hysteresis than the generation II power chain and energy chain. Both loading and unloading forces were decreased significantly with repetitive prestretching. However, unloading forces decreased less than the loading force, thereby reducing the hysteresis. All three products showed the greatest hysteresis in the first cycle, which decreased significantly following repeated prestretching. The 1-mm-unload/peak ratio increased significantly until the 4th cycle, the cycle after triple prestretching. Conclusively, repetitive prestretching of elastomeric chains further decreased hysteresis and abrupt force drop during the initial 1-mm unloading, up to triple prestretching.

KCI등재

4Effect of implant fixtures with blood pocket designed platforms on crestal bone

저자 : Jae-seok Kang , Byoung-eom Jung , Da-hyun Ko , Mee-kyoung Son

발행기관 : 조선대학교 치의학연구원 간행물 : Oral Biology Research (OBR) 46권 2호 발행 연도 : 2022 페이지 : pp. 78-86 (9 pages)

다운로드

(기관인증 필요)

초록보기

The purpose of this study was to investigate the impact of an implant with a blood pocket designed platform on the crestal bone by analyzing the stress distribution upon simulated application of occlusal forces and assessing its clinical role in marginal bone loss surrounding the implant. Stress exerted on the cortical and cancellous bones of three different platform type implants (URIS, TSIII, and Astra EV) were analyzed using finite element analysis (FEA). A load of 150 N was applied at 0°, 45°, and 90° angles to the long axis of each implant, and marginal bone loss in the implanted URIS fixtures (blood pocket designed platform) after immediate and delayed loading was measured. FEA showed that the stress generated on the fixture upon loading of the URIS implant was lower than that of the other two implants. The URIS implant also exerted the lowest stress on the cortical bone upon application of vertical pressure at an angle of 0° to the long axis of the fixture. The mean marginal bone loss in the alveolar bone was 1.01±0.33 mm and 0.46±0.30 mm upon immediate and delayed loading, respectively. FEA also indicated that implants with blood pocket designed platforms exhibited better stress distribution in the implant fixture and cortical bone under vertical pressure when compared to the fixtures of other designs. The marginal bone loss observed one year after loading of the URIS implant in the current study was lower than that reported previously.

KCI등재

5Recurred intraosseous pleomorphic adenoma mimicking an odontogenic cyst

저자 : Hee-yeoung Jung , Junyeong Lee , Dae-seung Yang , Jin-yong Cho , Jaeyoung Ryu

발행기관 : 조선대학교 치의학연구원 간행물 : Oral Biology Research (OBR) 46권 2호 발행 연도 : 2022 페이지 : pp. 87-90 (4 pages)

다운로드

(기관인증 필요)

초록보기

Pleomorphic adenoma is the most common tumor associated with the salivary gland. These tumors are derived from a mixture of ductal and myoepithelial elements and rarely develop in the jawbones. Regardless of the site of origin, pleomorphic adenoma presents as a painless, firm, and slow-growing mass, which is often misdiagnosed as an odontogenic cyst when located in the tooth-bearing areas of the jaws.

KCI등재

6Full mouth rehabilitation of patient with decreased occlusal vertical dimension due to severely worn dentition and posterior bite collapse

저자 : Seon-ki Lee

발행기관 : 조선대학교 치의학연구원 간행물 : Oral Biology Research (OBR) 46권 2호 발행 연도 : 2022 페이지 : pp. 91-98 (8 pages)

다운로드

(기관인증 필요)

초록보기

Pathologically progressive dental wear can cause dentin damage and pulp disease; it can even lead to tooth loss. The patient described herein, a 60-year-old male, had a decrease in vertical dimension due to severe abrasion of his remaining teeth and loss of his posterior teeth. The pattern of wear and its causes were evaluated, after which an appropriate vertical dimension and a repeatable centric relation position were considered. A full-mouth rehabilitation by increasing the vertical dimension was planned for the patient. His posterior bite support, wear history, facial features, interocclusal distance, and pronunciation were evaluated to determine the appropriate intermaxillary relationship and vertical elevation. Afterwards, full-mouth rehabilitation was completed using a monolithic zirconia prosthesis. The patient adapted well to the increased vertical dimension and the final prosthesis, had no complaints, and was aesthetically satisfied.

1
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