微创拔牙技术在纵折后牙粘结再植术中的临床应用

目的：从临床疗效、牙周愈合情况两方面探索微创拔牙技术对拔牙再植法治疗纵折后牙成功率影响。方法：来我院诊治的符合适应症的纵折后牙共50例进行拔牙再植法的治疗,局麻下拔除折裂牙,其中25例常规拔牙作为对照组,25例使用微创拔牙,然后在体外粘结,再植入牙槽窝,术后2周临时冠修复。定期复查,根据临床表现、牙周状况分级,统计分析。结果：拔牙过程中,对照组断根2例,而微创组无断根,2年随访成功率分别为对照组56%和微创组84%,对照组牙周膜愈合（4%）明显少于骨粘连愈合（72%）,而微创组牙周膜愈合达44%,与骨粘连愈合（52%）接近。结论：拔牙再植法是一种保存纵折后牙的有效方法,微创拔牙技术有利于再植后的牙周愈合及预后。     

外伤全脱位年轻恒牙再植的临床研究

目的：观察不同离体时间的年轻恒牙再植后的成功率。方法：详细记录60颗全脱位牙离体时间、手术及牙愈合情况，对患者进行1～2年的随访。结果：60颗脱位牙（离体时间为15min～16h）再植后牙周膜愈合26颗（43．3％），其中牙髓成活19颗（31．67％）；骨性愈合31颗（51．67％）；纤维愈合3颗。术后对38颗牙进行了根管治疗。结论：缩短脱位牙的离体时间、尽可能保存牙周膜的活性等是再植成功的重要因素。     

根尖闭合型恒牙完全脱位再植术的临床研究

[摘要] 目的 研究分析不同固定方式、固定时间和牙髓摘除、根管充填的时机对外伤性根尖闭合型完全脱位牙再植术后愈合方式和远期存留率的影响。方法 收治56位患者83颗外伤性根尖闭合型完全脱位牙再植治疗,随机分为两组：常规治疗组采用传统治疗方法;改良治疗组采用再植后弹性固定2~3周,2周时去髓并用Vitapex（碘仿氢氧化钙糊剂）根充,1月时常规根管充填,随访观察5年,比较两组再植牙术后愈合方式及近、远期存留情况。结果 改良治疗组再植牙术后牙周膜愈合率高于常规治疗组,骨性粘连率与炎症性吸收率低于常规治疗组,有显著性差异(P<0.05);两组再植牙术后1年、2.5年的存留率,改良治疗组略高于常规治疗组,但无显著性差异(P>0.05);5年存留率,改良治疗组(86.50%)优于常规治疗组(67.50%),有显著性差异(P<0.05)。结论 对于根尖闭合型完全脱位牙再植术,改良治疗方法可促进再植牙牙周膜愈合,减少牙根吸收的发生,提高远期疗效。[关键词] 完全脱位;再植;固定;根管治疗     

成熟狗牙深低温保存延期再植的实验研究

目的 研究被长期冻存的成熟狗牙在再植后的牙根愈合情况。方法 成熟狗牙在根管充填后被拔除,采用Schwatz的下周膜冻存法,分别保存1周、3月、牙被再植8周后取出标本,用5％甲酸脱钙,横断切片,HE染色,参照Andreasen的方法进行组织学评价。结果 冻存1周组牙周膜愈合的百分比为64．53％,低于即刻再植组者（85％）,无显著性差异（P＞0．05）;冻存3月组者为50．3％,与即刻再植组者差异有显著性（P＜0．05）。结论 同人体角膜、牙肤、胰岛等组织一样,人体牙周膜也可以被长期冻存,并且再植后获得愈合;但新制备的牙槽窝一定程度上影响牙周膜愈合。     

移植再植牙与牙根吸收

<正> 牙根吸收是移植、再植牙最常见和最严重的并发症,是移植、再植牙成功的关键,是近几十年来口腔医学研究的重点课题之一。移植再植牙根吸收的形式再植牙的愈合可以有三种方式,即牙周膜愈合、骨性愈合和纤维性愈合,其中以牙周膜愈合的预后最好。牙根吸收是移植再植牙失败的主要原因。一般     

阿仑膦酸钠对延期再植干燥狗牙愈合的影响

目的探讨阿仑膦酸钠(alendronate,ALN)溶液浸泡对延期再植干燥狗牙愈合的影响。方法选用成年杂种狗2条,以上颌双侧第1、2、5牙和下颌双侧第2、3、5牙为受试牙,右侧受试牙归入实验组,左侧受试牙归入对照组。所有受试牙均先做根管处理。7d后拔牙,自然干燥60min;实验组牙再植前被置于1mmol/L的阿仑膦酸钠溶液中浸泡5min;对照组牙再植前不被作其他任何处理。再植12周后取出含牙骨块。经脱钙、切片、HE染色后,对牙根的愈合情况进行组织形态学评价。结果实验组牙骨质愈合的百分比均值明显高于对照组者(P<0.01);实验组牙根炎症性吸收与替代性吸收的百分比均值分别低于对照组者(P<0.05)。结论ALN能有效地改善延期再植干燥牙的愈合,增加牙骨质愈合,减少牙根炎症性吸收与替代性吸收。     

釉质基质蛋白诱导延迟再植牙牙周愈合的研究

目的：研究应用釉基质蛋白对延迟再植比格犬恒切牙牙周再生的影响。方法：选取3只比格犬的15颗干燥60min的切牙随机分为两组,实验组10颗牙根涂釉基质蛋白;对照组5颗牙根不涂釉基质蛋白,进行再植。8周后处死犬,每隔500μm切取5μm厚的横断切片作组织学观察。结果：与对照组相比,实验组牙再植后能显著地增加牙周膜性愈合的数量（P〈0．001）,并减少替代性吸收（P〈0．001）。结论：釉基质蛋白能对延迟再植牙的牙周愈合有促进作用。     

颌骨骨折愈合过程中纤维粘连蛋白表达的免疫组化分析

目的：分析颌骨骨折愈合过程中总纤维粘连蛋白（tFN) 和细胞型纤维粘连蛋白(cFN）的表达和变化，探讨纤维粘连蛋白在颌骨骨折愈合过程中的作用。方法：以兔作为实验动物，制作下颌骨骨折动物模型，于骨折愈合的不同时期定期处死动物，获取标本，采用LsAB免疫组化染色法检测tFN和cFN的表达，而同期tFN和cFN表达强度的差异则体现了pFN的表达水平。结果：血浆型纤维粘连蛋（pFN)在正常组织中有表达，骨折后1d表达明显增强，5－7d时达峰值，骨折后3月在骨基质中仍有较强表达。cFN在骨折后3d出现表达，7d时达峰值，2周后开始减弱，1月时仅可观察到微弱表达，表达部位主要在骨周结缔组织基质。结论：颌骨骨折翕合过程中，pFN与cFN的表达存在着时空差异，提示pFN主要在血凝块形成、单核细胞吞噬作用、骨基质沉积、钙化等过程中发挥作用，cFN对细胞分化、增殖有重要调节作用。     

实验性即刻再植牙大鼠模型的建立

目的:建立大鼠即刻再植牙动物模型,观察再植牙的愈合过程与牙根外吸收的表现。方法:30只6周龄SPF级Wist-ar雄性大鼠,分为6组,每组5只。单侧上颌第一磨牙脱位后即刻再植,对侧同名牙为自身对照。分别于术后1、3、7、14、21、28d处死,分离上颌骨;拍根尖X线片,应用图像分析系统测量近中根根尖周阴影面积;标本切片、HE染色,进行组织学观察。结果:近中根根尖周阴影面积随时间延长而增大,近中根牙根表面吸收陷窝增多,牙周膜局部宽度变窄,新生骨样组织增加。结论:本法成功建立再植牙动物模型,该模型稳定可靠,能完整反映再植牙愈合方式,为进一步研究再植牙愈合机理提供了很好的研究模型。     

促进撕脱性损伤牙延期再植后牙周愈合的研究进展#br#

牙撕脱性损伤是牙外伤中预后较差的一种,目前对于恒牙撕脱性损伤的治疗一般采用牙再植术,再植时根面牙周组织活性对其预后至关重要。临床调查显示,撕脱性损伤牙再植多为延期再植,离体牙根面牙周膜在干燥状态下脱水坏死是导致术后病理性牙根吸收的主要原因。国际牙外伤协会建议在延期再植时采取适当措施,促进再植牙的牙周愈合再生,减少病理性吸收,延长再植牙使用寿命。文章结合2020版国际牙外伤协会撕脱性损伤牙治疗指南对现有促进撕脱性损伤牙延期再植后牙周愈合相关研究做一综述,包括根面处理、药物及干细胞治疗在牙再植术中的应用。     

Book Reviews

Book reviewed in this article:
HANDBOOK OF LOCAL ANAESTHESIA, by S. F. Malamed.
ENDODONTIC PRACTICE, by Louis I. Grossman.
PRINCIPLES OF PATHOLOGY FOR DENTAL STUDENTS, by J. B. Walter, Margaret C. Hamilton, and M. S. Israel.
COMPLETE HANDBOOK FOR DENTAL AUXILIARIES, by C. A. Reap, Jr.
TOOTH SURFACE INTERACTIONS AND PREVENTIVE DENTISTRY, edited by G. Rolla, T. Sonju, and G. Embery.
CLINICAL ORAL PEDIATRICS, edited by G. E. White.
FUNDAMENTALS OF FIXED PROSTHODONTICS, by H. T. Shillingburg Jr, S. Hobo, and L. D. Whitsett.
RESTORATIVE TECHNIQUES FOR INDIVIDUAL TEETH, Masson Monographs in Dentistry 2, edited by L. Baum.
OCCLUSION IN CLINICAL PRACTICE, Dental Practitioner Handbook No. 30, by H. Thomson.
EPILEPSY AND THE ORAL MANIFESTATIONS OF PHENYTOIN THERAPY, by T. M. Hassell
LOCAL ANAESTHESIA IN DENTISTRY, by G. L. Howe, and F. I. H. Whitehead.
METALS FORUM, Volume 3, Number 4, 1980, assembled by J. J. Stobo.
McCRACKEN'S REMOVABLE PARTIAL PROSTHODONTICS, by D. Henderson, and V. L. Steffel.
DENTAL PUBLIC HEALTH AND COMMUNITY DENTISTRY, edited by A. Jong.
TEXTBOOK OF OPERATIVE DENTISTRY, by L. Baum, R. W. Phillips, and M. R. Lund.
A MANUAL OF PAEDODONTICS, by R. J. Andlaw and W. P. Rock.
ORAL SURGERY IN DENTAL PRACTICE, by E. Kruger, and P. Worthington.
NUTRITION IN PREVENTIVE DENTISTRY: SCIENCE AND PRACTICE, edited by A. E. Nizel.
REGIONAL ANAESTHESIA OF THE ORAL CAVITY, by J. T. Jastak, and J. A. Yageila.
DENTAL RADIOLOGY, by A. H. Wuehrmann, and L. R. Manson-Hing.     

Book Reviews

Book reviewed in this article:
TOOTHACHE AND OROFACIAL PAIN, by J. M. Mum-ford.
INTRODUCING WHO. Geneva, World Health Organization, 1976.
PROSTHODONTIC TREATMENT FOR EDENTULOUS PATIENTS, by C. O. Boucher. J. C. Hickey, and G. A. Zarb.
A COLOUR ATLAS OF HISTOLOGY, by M. B. L. Craigmyle.
ORTHODONTIC DIAGNOSIS. Dental Practitioner Handbook No. 4, by W. J. B. Houston.
WALTHER'S ORTHODONTIC NOTES, revised by W. J. B. Houston.
DENTAL IDENTIFICATION AND FORENSIC ODONTOLOGY, by W. Harvey and 15 contributors.
COMMUNICATION IN THE DENTAL OFFICE. A PROGRAMMED MANUAL FOR THE DENTAL PROFESSIONAL, by R. E. Froelich, F. M. Bishop, and S. F. Dworkin.
MASTICATION. PROCEEDINGS OF A SYMPOSIUM ON THE CLINICAL ASPECTS OF MASTICATION. MEDICAL SCHOOL, BRISTOL, 14–16 APRIL, 1975, edited by D. J. Anderson and B. Matthews.
ESSENTIALS OF CLINICAL DENTAL ASSISTING, by J. E. Chasteen.
THE USE OF ADHESIVES IN DENTISTRY, by M. G. Buonocore.
ENDODONTIC THERAPY, edited by Franklin S. Weine, with five contributing authors.     

Book Reviews

Book reviewed in this article:
CLINICAL PHARMACOLOGY IN DENTAL PRACTICE, edited by Sam V. Holroyd.
ORAL DIAGNOSIS, by D. A. Kerr, M. M. Ash, and H. D. Millard.
THE YEAR BOOK OF DENTISTRY 1978, edited by M. L. Hale, S. P. Hazcn, R. E. Moyers, D. F. Redig, M. B. O. Robinson, S. I. Silverman.
RADIOLOGY FOR DENTAL AUXILIARIES, by Herbert H. Frommer.
WHO STUDY OF DENTAL CARIES ETIOLOGY IN PAPUA NEW GUINEA, WHO Offset Publication No. 40, by R. G. Schainschula, B. L. Adkins, D. E. Barmes, G. Charlton, and B. G. Davey.
DEVELOPMENT, FUNCTION AND EVOLUTION OF TEETH, edited by P. M. Butler, and K. A. Joysey.
FLUORIDES AND DENTAL FLUOROSIS, by Howard M. Myers.
SELF ASSESSMENT MANUAL. PART I. ORAL SURGERY AND PATHOLOGY, by B. Cohen, D. Mason, and D. Poswillo.
DICTIONARY OF ABBREVIATIONS IN MEDICINE AND THE HEALTH SCIENCES, by Harold K. Hughes.
MANUAL OF CLINICAL PERIODONTICS, edited by H. L. Ward, and M. Simring. St. Louis
CONSCIOUS SEDATION IN DENTAL PRACTICE, by C. Richard Bennett. St Louis
BEHAVIOURAL SCIENCE AND DENTAL PRACTICE, by Samuel F. Dworkin, Thomas P. Ference, and Donald B. Giddon.     

Book Reviews

Book reviewed in this article:
DENTAL LABORATORY PROCEDURES. COMPLETE DENTURES, by Robert M. Morrow, Kenneth D. Rudd and Harold F. Eissmann.
IMMUNOLOGY OF ORAL DISEASES, by I. M. Riott and T. Lehner.
PERIODONTICS, by J. D. Manson.
ATLAS OF COMPLETE DENTURES, by G. Passamonti.
TEXTBOOK OF PEDIATRIC DENTISTRY, edited by R. L. Braham and Merle E. Morris.
SEDATION, by H. L. Hamburg.
DENTAL PLAQUE. THE ECOLOGY OF THE FLORA ON HUMAN TEETH, by H. N. Newman.
FUNDAMENTALS OF REMOVABLE PROSTHODON-TICS, by D. L. Johnson and R. J. Stratton.
PRACTICE MANAGEMENT, A BUSINESS MANUAL FOR ALL PROFESSIONS AND STAFFS, by Felicity Baverstock and D. Eve.
ORBAN'S ORAL HISTOLOGY AND EMBRYOLOGY, edited by S. N. Bhaskar.
DENTAL MANAGEMENT OF THE MEDICALLY COMPROMISED PATIENT, by J. W. Little and Donald A. Falace.
PANORAMIC DENTAL RADIOGRAPHY, by L. R. Manson-Hing.
MANAGEMENT OF THE GERIATRIC DENTAL PATIENT, by K. A. Freedman.     

Book Reviews

Book reviewed in this article:
NUTRITION AND DENTAL HEALTH A.J. Rugg-Gunn (with contributions by A.F. Hackett)
PORCELAIN AND COMPOSITE INLAYS AND ONLAYS. ESTHETIC POSTERIOR RESTORATIONS. D.A. Garber, R.E. Goldstein, eds.
REMOVABLE PARTIAL PROSTHODONTICS: A CASE-ORIENTATED MANUAL OF TREATMENT PLANNING. S.K. Lechner, A.R. MacGregor
BURKET'S ORAL MEDICINE, DIAGNOSIS AND TREATMENT. M.A. Lynch, V.J. Brightman, M.S. Greenberg, eds.
PERIODONTAL REGENERATION. CURRENT STATUS AND DIRECTIONS. A.M. Poison, ed.     

Present status of osseous grafting procedures.

Osseous grafting techniques represent one mode of therapy to manage combination pocket-osseous defects. They have their greatest applicability in the intrabony defect although encouraging results have been noted in furcation and suprabony sites. Like all treatment modalities, their usage is dictated by the therapeutic objectives for specific problems and whether their respective advantages and limitations outweigh other management techniques. They are neither a panacea nor an unproven experimental venture. When properly employed, they are a valuable component of currently accepted therapy. When compared with other treatment approaches, the following relative advantages and limitations have been noted with osseous grafts: Advantages 1. Reconstruct lost periodontium. 2. Idealistic therapeutic objective. 3. Reversal of disease process. 4. Increase tooth support. 5. Enhance esthetics. 6. Improve function. Limitations 1. Additional treatment time. 2. Autograft disadvantages. 3. Availability of graft material. 4. Additional postoperative care. 5. Unique postoperative problems. 6. Variations in repair. 7. Longer post-treatment evaluation interval. 8. Predictability. 9. Greater expense. 10. Multistep therapy common. 11. Vulnerability to recurrence.     

Book Reviews

Book reviewed in this article:
SURGERY OF THE TEMPOROMANDIBULAR JOINT D.A. Keith, ed
TEMPOROMANDIBULAR DISORDERS C. McNeill, ed
DISEASES OF THE PERIODONTIUM H.N. Newman, T.D. Rees, D.F. Kinane, eds.
COLOUR ATLAS OF HUMAN ORAL HISTOLOGY H. Kitamura, M. Oda, J. A. Hess
ETHICAL QUESTIONS IN DENTISTRY J.T. Rule, R.M. Veatch
PEDIATRIC DENTISTRY: INFANCY THROUGH ADOLESCENCE J.R. Pinkham, ed.
ELEMENTS OF DENTAL MATERIALS FOR DENTAL HYGIENISTS AND DENTAL ASSISTANTS R.W. Phillips, B.K. Moore
IMMUNOLOGY OF ORAL DISEASES T. Lehner
PAEDIATRIC OROFACIAL MEDICINE AND PATHOLOGY R.K. Hall     

Book Reviews

Book reviewed in this article:
ORAL SURGERY, by Kurt H. Thoma. St. Louis.
TEXTBOOK FOR DENTAL. NURSES, by H. Levison.
ADVANCES IN FLUORINE RESEARCH AND DENTAL CARIES PREVENTION.
A MANUAL OF DENTAL AND ORAL RADIOGRAPHY, by S. Blackman and H. G. Poyton.
DENTAL. JURISPRUDENCE, by Harvey Sarner.
PRINCIPLES AND PRACTICE OF ORAL RADIOLOGIC INTERPRETATION, by H. M. Worth.
A TEXTBOOK OF ORAL PATHOLOGY, by W. G. Shafer, M. K. Hine and B. M. Levy.
BOOK OF THE YEAR (BRITANNICA). Published by EncyclopÆdia Britannica Inc.
ELECTRON MICROSCOPY OF SKIN AND MUCOUS MEMBRANE, by A. S. Zelickson and V. Francis Hartmann.     

Book reviews

Books reviewed in this article:
Periodontitis in Man and Other Animals: A Comparative Review , R. C. Page and H. E. Schroeder
CRC Manual for the Examination of Bone. C. Anderson
Basic Research and Clinical Medicine S. P. Bralow, ed.
Oral Immuogenetics and Tissue Transplantation G. R. Riviere and W. H. Hildeman eds.
The Chemistry and Biology of Mineralized Tissues , ed. A. Veis
Histochemistry: The Wedding of its Applications in the Biomedical Sciences , eds. P. J. Stoward & J. M. Ploak
Diagnostic immunohistochemistry , ed. R. D. DeLellis
Biology and Disease of Dermal Pigmentation , ed. T.B. Fitzpatrick et al.
Human Dento-facial Growth D. H. Goose and J. Appleton     

Book reviews

Book reviewed in this article:
P reventive D entistry for the. A G uidebook of P ositive P reventive D ental C are , by J. Edward Shephard.
R emovable C losure of the I nterdental S pace (C.I.S.), by Arnold Gyrny.
M aterials S cience in D entistry , by E. H. Greener, J. K. Harcourt, and E. P. Lautenschlager.
O rthodontics : P rinciples and P ractice , By T. M. Graber.
S urface C hemistry and D ental I nteguments , edited by Lasslo, A., and Quintana, R. P. Springfield, Ill., Charles C. Thomas, 1973.
T ooth -C oloured F illing M aterials in C linical P ractice . Dental Practitioner Handbook No. 16, by L. W. Deubert and C. B. G. Jenkins.
F acial P rosthesis , by Arthur H. Bulbidian. Springfield, Illinois, Charles C. Thomas.
A natomy for S tudents of D entistry , by J. H. Scott and A. D. Dixon.