Name: development of a direct pulp-capping model for the evaluation of pulpal wound healing and reparative dentin formation in mice
Uploaded: 2017-01-12T12:30:00
Description: Watch this Scientific Journal Video about Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice at JoVE.com

이 연구는 NIDCR / NIH에서 R01DE023348 (RHK)와 캘리포니아 대학 로스 앤젤레스 부문의 학술 상원의 연구에 이사회에서 학부 연구 그랜트 (RHK)에 의해 지원되었다.

마우스는 잭슨 연구소에서 구입하여 실험 동물 의학의 UCLA과 (DLAM)에서 병원균이없는 동식물 사육장에 보관 하였다. 실험은 교육감의 동물 연구위원회 (ARC 번호 2016-037)에서 승인 된 기관의 지침에 따라 수행 하였다. 1. 마우스 마취 <ol><li> 8 주 된 암컷 C57 / BL6 마우스를 사용하여 (n = 3)를 나타낸다. </li><li> 케타민 (마우스 체중의 80 ~ 120 ㎎ / ㎏) / 자일 라진 (5 밀리그램 / 마우스 체중 kg) 솔루?...

<ol>
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A pending public health crisis.</a> Am J Dent. 22 (1), 3-8 (2009).</li><li>Koliniotou-Koumpia, E., Tziafas, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pulpal+responses+following+direct+pulp+capping+of+healthy+dog+teeth+with+dentine+adhesive+systems.">Pulpal responses following direct pulp capping of healthy dog teeth with dentine adhesive systems.</a> J Dent. 33 (8), 639-647 (2005).</li><li>Tarim, B., Hafez, A. A., Cox, C. 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J., Sagheri, D., Schafer, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+histologic+investigation+of+direct+pulp+capping+in+rodents+with+dentin+adhesives+and+calcium+hydroxide.">A histologic investigation of direct pulp capping in rodents with dentin adhesives and calcium hydroxide.</a> Quintessence Int. 41 (4), 62-71 (2010).</li><li>Jegat, N., Septier, D., Veis, A., Poliard, A., Goldberg, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Short-term+effects+of+amelogenin+gene+splice+products+A+4+and+A-4+implanted+in+the+exposed+rat+molar+pulp.">Short-term effects of amelogenin gene splice products A+4 and A-4 implanted in the exposed rat molar pulp.</a> Head Face Med. 3, 40 (2007).</li><li>Paterson, R. C., Radford, J. 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G., Shi, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Postnatal+human+dental+pulp+stem+cells+(DPSCs)+in+vitro+and+in+vivo.">Postnatal human dental pulp stem cells (DPSCs) in vitro and in vivo.</a> Proc Natl Acad Sci U S A. 97 (25), 13625-13630 (2000).</li><li>Yu, J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Odontogenic+capability:+bone+marrow+stromal+stem+cells+versus+dental+pulp+stem+cells.">Odontogenic capability: bone marrow stromal stem cells versus dental pulp stem cells.</a> Biol Cell. 99 (8), 465-474 (2007).</li><li>Zhu, X., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Transplantation+of+dental+pulp+stem+cells+and+platelet-rich+plasma+for+pulp+regeneration.">Transplantation of dental pulp stem cells and platelet-rich plasma for pulp regeneration.</a> J Endod. 38 (12), 1604-1609 (2012).</li><li>Iohara, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dentin+regeneration+by+dental+pulp+stem+cell+therapy+with+recombinant+human+bone+morphogenetic+protein+2.">Dentin regeneration by dental pulp stem cell therapy with recombinant human bone morphogenetic protein 2.</a> J Dent Res. 83 (8), 590-595 (2004).</li><li>Saito, K., Nakatomi, M., Ida-Yonemochi, H., Ohshima, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Osteopontin+Is+Essential+for+Type+I+Collagen+Secretion+in+Reparative+Dentin.">Osteopontin Is Essential for Type I Collagen Secretion in Reparative Dentin.</a> J Dent Res. , (2016).</li><li>Hunter, D. J., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Wnt+Acts+as+a+Pro-Survival+Signal+to+Enhance+Dentin+Regeneration.">Wnt Acts as a Pro-Survival Signal to Enhance Dentin Regeneration.</a> J Bone Miner Res. , (2015).</li><li>Goldberg, M., Kulkarni, A. B., Young, M., Boskey, A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dentin:+structure,+composition+and+mineralization.">Dentin: structure, composition and mineralization.</a> Front Biosci (Elite Ed). 3, 711-735 (2011).</li><li>Nascimento, A. B., Fontana, U. F., Teixeira, H. M., Costa, C. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Biocompatibility+of+a+resin-modified+glass-ionomer+cement+applied+as+pulp+capping+in+human+teeth).">Biocompatibility of a resin-modified glass-ionomer cement applied as pulp capping in human teeth).</a> Am J Dent. 13 (1), 28-34 (2000).</li><li>Bogen, G., Kim, J. S., Bakland, L. K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Direct+pulp+capping+with+mineral+trioxide+aggregate:+an+observational+study.">Direct pulp capping with mineral trioxide aggregate: an observational study.</a> J Am Dent Assoc. 139 (3), 305-315 (2008).</li><li>Miller, R. A., Nadon, N. 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현재 치과 펄프 줄기 세포 (DPSCs) (13)의 치성 분화에 치과 재료, 비계, 또는 성장 인자의 생체 내 효과를 검증 할 수 여러 가지 실험 모델이있다. 이 모델은 신장 캡슐 기관에 DPSCs의 자궁외자가 이식, 또는 비계 14, 15와 면역 저하 마우스로 DPSCs의 피하 이식을 포함한다. 그러나, 이들 방법은 DPSCs 그들의 원성 효과는 동소 펄프 환경에서 수행되지 않도록 제한된다. 한편, 치아의 ...

Dental caries are one of the most prevalent oral diseases and the leading cause of surgical interventions to dentitions in almost all individuals1,2. The prognosis of surgical interventions and restorations of a tooth largely depends upon proper pulpal response and successful wound healing. Indeed, dental caries that penetrate deeply through the enamel and dentin frequently lead to the exposure of the underlying pulp tissue that is often "capped" with dental materials, such as calcium hydroxide (Ca(OH)2) or hydraulic calcium-silicate cements (HCSCs), including mineral trioxide aggregates (MTA). The ultimate goal of such a pulp-capping procedure is to expedite pulpal wound healing by regenerating reparative dentin, a physical barrier that functions as a "biological seal" to protect the underlying pulp tissue and to increase the life expectancy of the tooth and the overall oral health. However, the underlying mechanism of pulpal wound healing and reparative dentin formation is not fully understood.
To better understand the mechanisms of pulpal wound healing and reparative dentin formation in vivo, several animals were previously used, including monkeys, dogs, and pigs3-5. Among them, rats are frequently used because they are relatively smaller in sizes compared to the other animals, but their teeth are large enough to perform direct pulp capping without any technical difficulties6-10. These animal models are ideal alternatives to human studies for examining pulpal responses and reparative dentin formation. However, their utilization is limited to observational studies at the cellular level, and they scarcely provide mechanistic insights during reparative dentin formation at the molecular level.
Recent technical advances in genetic engineering provided invaluable and indispensable research tools-mice that harbor a gene that is either overexpressed or deleted-that are instrumental to studying molecular mechanisms of human diseases in vivo. The numbers of different strains of transgenic or knockout mice that are strategically inducible in a cell-specific manner are continually growing in the scientific community. Therefore, examining pulpal wound healing and reparative dentin regeneration in these mice would greatly help to expedite our understanding of these processes at the molecular level. However, the use of mice is significantly dampened, as performing a pulp-capping procedure on a mouse tooth is technically challenging due to its miniature size. Here, we present our reproducible method of performing direct pulp capping in mice for the evaluation of pulpal wound healing and reparative dentin formation in vivo.

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		<tr height="21">
			<td height="21" style="height:21px;width:164px;">BM-LED stereo microscope</td>
			<td style="width:164px;">MEIJI Techno</td>
			<td style="width:140px;"></td>
			<td style="width:173px;">Microscope&#160;</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Optima MCX-LED&#160;</td>
			<td>Bien Air Dental</td>
			<td>1700588-001</td>
			<td>Electic motor engine</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">isoflurane</td>
			<td>Henry schein animal health</td>
			<td>NDC 11695-0500-2</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;">1/4 round bur</td>
			<td>Brasseler</td>
			<td>001092T0</td>
			<td></td>
		</tr>
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			<td height="21" style="height:21px;">Endodontic K-file</td>
			<td>Roydent</td>
			<td>98947</td>
			<td></td>
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			<td height="21" style="height:21px;">ProRoot MTA</td>
			<td>Dentsply</td>
			<td>PROROOT5W</td>
			<td>MTA</td>
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			<td height="21" style="height:21px;">Paper point</td>
			<td>Henry schein</td>
			<td>100-3941</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Ultra-Etch</td>
			<td>Ultradent product Inc.</td>
			<td></td>
			<td>Phosphoric acid etchant</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">OptiBond SoloPlus</td>
			<td>Kerr</td>
			<td>29669</td>
			<td>Adhesives</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Coltolux LED</td>
			<td>Coltene/whaledent Inc.</td>
			<td>C7970100115</td>
			<td>Curing light unit</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Characterization tint</td>
			<td>Bisco</td>
			<td>T-14012</td>
			<td>Flowable composite</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Skyscan</td>
			<td>Breuker</td>
			<td>1275</td>
			<td>uCT scanner</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Microm</td>
			<td>Thermo</td>
			<td>HM355S</td>
			<td>Microtome</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Hematoxyline-1</td>
			<td>Thermo Scientific</td>
			<td>7221</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Eosin-Y</td>
			<td>Thermo Scientific</td>
			<td>7111</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cytoseal 60</td>
			<td>Thermo Scientific</td>
			<td>8310-16</td>
			<td>Mounting solution</td>
		</tr>
	</tbody>
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development of a direct pulp-capping model for the evaluation of pulpal wound healing and reparative dentin formation in mice

Dental pulp is a vital organ of a tooth fully protected by enamel and dentin. When the pulp is exposed due to cariogenic or iatrogenic injuries, it is often capped with biocompatible materials in order to expedite pulpal wound healing. The ultimate goal is to regenerate reparative dentin, a physical barrier that functions as a "biological seal" and protects the underlying pulp tissue. Although this direct pulp-capping procedure has long been used in dentistry, the underlying molecular mechanism of pulpal wound healing and reparative dentin formation is still poorly understood. To induce reparative dentin, pulp capping has been performed experimentally in large animals, but less so in mice, presumably due to their small sizes and the ensuing technical difficulties. Here, we present a detailed, step-by-step method of performing a pulp-capping procedure in mice, including the preparation of a Class-I-like cavity, the placement of pulp-capping materials, and the restoration procedure using dental composite. Our pulp-capping mouse model will be instrumental in investigating the fundamental molecular mechanisms of pulpal wound healing in the context of reparative dentin in vivo by enabling the use of transgenic or knockout mice that are widely available in the research community.

여기서는 마우스 치아 캐핑 펄프 수행 단계별 과정을 나타내었다. 마우스에서 캐핑 펄프의 중요한 측면 중 하나는 적절한 장치를 가지고있다. 이와 관련하여, 10 배의 전력 배율 현미경을 갖는 것이 필수적 (도 1a)이다. 치아의 클래스 I-같은 준비를 만들려면, 우리는 20 만 rpm으로 (그림 1B)에서 전기 고속 핸드 피스의 ¼ 라운드 버를 사용했다. 대안 ?...

Watch this Scientific Journal Video about Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice at JoVE.com

Development of a Direct Pulp-capping Model for the Evaluation of Pulpal Wound Healing and Reparative Dentin Formation in Mice

우리는 치수의 상처 치유 및 생체 수복 상아질 형성 평가 마우스 치아에 직접 캐핑 펄프를 행하는 단계적인 방법을 설명한다.

치수의의 평가에 대한 직접 펄프 캐핑 모델의 개발 상처 치유와 마우스의 수복 상아질 형성

Dental pulp is a vital organ of a tooth fully protected by enamel and dentin. When the pulp is exposed due to cariogenic or iatrogenic injuries, it is ...

Research

JoVE Journal

Medicine

Murine Model of Wound Healing

상처 치유의 생쥐 모델

Wound healing and repair are the most complex biological processes that occur in human life. After injury, multiple biological pathways become activated. ...

연구

의학

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

Murine Endoscopy for In Vivo Multimodal Imaging of Carcinogenesis and Assessment of Intestinal Wound Healing and Inflammation

에 대한 쥐의 내시경<em&gt; 생체</em&gt; 발암 및 소장의 평가의 멀티 모달 이미징 상처 치유 및 염증

Mouse models are widely used to study pathogenesis of human diseases and to evaluate diagnostic procedures as well as therapeutic interventions ...

Creation and Transplantation of an Adipose-derived Stem Cell (ASC) Sheet in a Diabetic Wound-healing Model

Creation and Transplantation of an Adipose-derived Stem Cell ASC Sheet in a Diabetic Wound-healing Model

생성 및 당뇨병 치유 하는 부상을 모델에서 줄기 세포 지방이 많은 파생 (ASC) 시트의 이식

Artificial skin has achieved considerable therapeutic results in clinical practice. However, artificial skin treatments for wounds in diabetic patients ...

In Vivo Evaluation of Fracture Callus Development During Bone Healing in Mice Using an MRI-compatible Osteosynthesis Device for the Mouse Femur

In Vivo Evaluation of Fracture Callus Development During Bone Healing in Mice Using an MRI-compatible Osteosynthesis Device for the Mouse Femur

Vivo에서 골절 뼈 쥐 마우스 대 퇴 골에 대 한 MRI-호환 Osteosynthesis 장치를 사용 하 여 치료 기간 동안 굳은 살 개발의 평가

Endochondral fracture healing is a complex process involving the development of fibrous, cartilaginous, and osseous tissue in the fracture callus. The ...

Microscopy Based Methods for the Assessment of Epithelial Cell Migration During In Vitro Wound Healing

Microscopy Based Methods for the Assessment of Epithelial Cell Migration During  In Vitro Wound Healing

현미경 기반 방법을 생체 외에서 상처 치유 중 상피 세포 이동의 평가 대 한

Cell migration is a mandatory aspect for wound healing. Creating artificial wounds on research animal models often results in costly and complicated ...

A Minimally Invasive Model to Analyze Endochondral Fracture Healing in Mice Under Standardized Biomechanical Conditions

Endochondral 골절 표준화 된 Biomechanical 조건 하에서 쥐에서 치유를 분석 하는 최소 침 습 모델

Bone healing models are necessary to analyze the complex mechanisms of fracture healing to improve clinical fracture treatment. During the last decade, an ...

Corneal Epithelial Abrasion with Ocular Burr As a Model for Cornea Wound Healing

각 막에 대 한 모델로 눈 버와 각 막 상피 마모 상처 치유

The murine cornea provides an excellent model to study wound healing. The cornea is the outermost layer of the eye, and thus is the first defense to ...

The Generation of Closed Femoral Fractures in Mice: A Model to Study Bone Healing

Bone fractures impose a tremendous socio-economic burden on patients, in addition to significantly affecting their quality of life. Therapeutic strategies ...

Ex Vivo Corneal Organ Culture Model for Wound Healing Studies

Ex Vivo 막 기관 문화 모델에 대 한 상처 치유 연구

The cornea has been used extensively as a model system to study wound healing. The ability to generate and utilize primary mammalian cells in two ...

Targeting Gray Rami Communicantes in Selective Chemical Lumbar Sympathectomy

선택적 화학 요 추 신경 절제술의 대상 회색 라미 Communicantes

Chemical lumbar sympathectomy (CLS) is a commonly used, minimally invasive procedure for the treatment of conditions including ischemic diseases of the ...