前牙种植即刻修复技术的临床应用

目的：探讨前牙种植即刻修复的临床可行性并观察其近期效果方法：从2004年8月至2005年6月共为17位患者行23枚种植体植入后即刻修复。均于1周内在种植体上部完成烤瓷冠修复。所有患者均于术后1、3、6月复查．结果：本组17例患者23枚种植体即刻修复，所有患者均对即刻修复效果满意。16例22枚种植体经2-10个月观察．稳定性良好，未发生种植体脱落．牙龈色泽正常．X线片显示骨组织无异常吸收。一例患者种植体即刻稳定性好，3个月后因外伤至种植体拆除。结论：严格掌握适应证和特殊设计的种植系统，应用改良的种植外科和修复技术对一些前牙缺失患者行种植即刻修复近期开效满意．     

牙种植即刻修复的临床应用研究

目的:探讨牙种植即刻修复的临床可行性、技术特点及观察其近期临床效果。方法:自2003年1月至2005年6月,共对94例失牙患者215枚种植体进行植入后即刻修复,即在1周或更短时间内完成树脂冠或烤瓷冠修复。结果:追踪观察3～30个月,215枚即刻修复的种植体中5枚丢失,其余无松动,无感染,种植体周围未出现X线透射影,未见明显骨吸收。近期留存率97.67%,效果较满意。结论:在严格掌握适应症的前提下,种植后即刻修复,近期效果较好。     

种植与种植修复临床应用体会

目的:观察种植牙及其修复后的临床效果。方法:65例缺失牙患者,采用瑞士NOUVAG MD20种植机植入ITI、BEGO、DENTIUN系统植体共126颗。结果:临床观察最长72月(6年),最短1月,种植体与骨结合良好,修复后咬关系良好,咀嚼功能良好,无一例失败,临床疗效良好。结论:种植手术和种植修复的成功,与严格把握好适应症,术前周密计划,手术操作技术以及种植修复设计与操作技术密切相关。     

前牙种植修复136例临床探讨

目的:对前牙区骨下种植与软组织水平种植治疗效果进行比较。方法:收集2005-06—2010-10笔者接诊治疗的前牙缺失患者共136例,65例使用软组织水平种植体(Straumann/RN.SP/NN)计87枚,71例使用骨下种植体(Ankylos)计92枚。3~6个月后永久修复。结果 :观察1~5年后,两种植体均取得良好的临床疗效。结论 :前牙区是美学区,骨下种植体在骨量相对不足的条件下,可优先选择。     

咬合重建义齿即刻转换为种植固定义齿的临床修复技术

由于口腔种植技术的成熟和广泛应用,使得在临床中对于患者所提的特殊要求和口腔缺牙条件差的复杂义齿病例得以修复完成。如何使复杂的咬合重建可摘义齿应用种植技术转化为种植固定义齿修复,这需要考虑两种义齿的修复特点和临床修复技术的转化应用。本讲座对临床修复细节进行了讲述,便于临床大夫开展和应用     

不同牙位即刻种植临床效果探讨

目的 探讨前牙区、双尖牙区、磨牙区即刻种植的临床效果。方法 选择2007年1月至2012年1月在湛江市第一中医院口腔科就诊的种植病例36例,微创拔除患牙后即刻植入CDIC种植体39枚,其中上颌前牙区18枚,下颌前牙区7枚,上颌双尖牙区11枚,下颌第一磨牙区3枚。除磨牙区延期修复外,其他牙位均在48 h内做临时冠修复。3～6个月后完成烤瓷冠永久修复。所有患者修复后追踪随访1～6年。结果 上颌前牙区、下颌前牙区、上颌双尖牙区种植体均有良好的骨结合,观察期内成功率均为100%;下颌第一磨牙区有1枚于18个月后发生松动而脱落,观察期内成功率为66.6%。结论 在适当选择病例的情况下,即刻种植可成功应用于临床,且在前牙区、双尖牙区成功率较高,磨牙区成功率略低。     

Nobel Guide即刻全口种植固定义齿修复技术临床应用

目的研究临床应用Nobel Guide外科导板进行即刻全口种植固定义齿修复的效果。方法对8例无牙颌患者利用Nobel Guide外科导板,预先完成种植体全口固定义齿。在种植体植入后,即刻戴入预先完成的种植固定义齿,对其进行3～18个月的定期复查。结果所有修复患者,义齿就位比较顺利,义齿的金属基台与种植体贴合紧密,咬合关系良好。复查时义齿的清洁性良好,没有对义齿组织面进行重衬处理,患者对义齿的修复效果比较满意。结论利用Nobel Guide外科导板进行即刻全口种植固定义齿修复,是一种比较好的修复方法 。     

即刻种植与即刻修复的临床应用

目的 探讨即刻种植与即刻修复的临床运用原则，并初步评价临床疗效。方法 14例患者共37个牙位在拔牙同时植入了种植体，其中6例共14个牙位即刻种植后又行即刻修复。平均4个月后进行Ⅱ期手术和最终修复。修复后平均追踪观察时间为22个月。结果 除1例2枚种植体于即刻种植并即刻修复后3周松脱外，其余病例自修复完成至最后一次复查，临床效果良好，4年累积存活率达到94．6％。结论在适当选择病例的情况下，即刻种植与即刻修复可成功应用于临床，并获得较高的存活率。     

人工种植牙的临床应用

目的：观察部分前牙缺失患者的种植修复,总结成功病例和造成失败的原因。方法：采用一段式纯钛种植体对380例前牙缺失患者治疗。随访观察1年以上,结果：种植体有较高的成功率。结论：只要选择好手术适应证。正确手术操作和修复方式,采用种植修复前牙缺失是可行和实用的。     

改良方法制作过渡义齿在牙种植美学修复软组织成形中的临床应用

目的 :探讨一种改良方法制作过渡义齿,在牙种植美学修复中对软组织诱导成形的应用价值。方法 :采用改良方法制作过渡义齿,对22例前牙区单牙缺失及8例连续多颗牙缺失种植修复患者的44颗种植体周围软组织,进行诱导成形,种植一期手术时在种植模板引导下植入种植体后,利用模板将种植体三维位置及方向转移到模型上,在模型上制作过渡义齿,二期手术时直接安放过渡义齿对软组织进行诱导成形。另采用常规的愈合基台与过渡义齿两步诱导法对10例单颗前牙种植体周围软组织进行诱导作对照。结果:单牙缺失种植修复者,两组红色美学指数(PES)得分别为7.1±1.2与6.6±1.8(P<0.05)。改良方法制作过渡义齿组诱导时间为(2.8±1.8)个月,平均复诊次数(2.2±1.8)次;常规两步方法平均诱导时间为(9.5±2.5)个月,复诊次数为(4.6±2.7)次,诱导时间差异P<0.01,复诊次数差异P<0.05,差异均有统计学意义。连续多颗牙缺失种植修复者的软组织成型后也获得了较为美观的效果,诱导时间为2~6个月,复诊次数为2~5次。结论 :该改良方法制作过渡义齿用于种植美学修复中软组织的诱导,是一个可行且有效的软组织成型方法。     

不同种植系统在牙周炎患者修复中的应用效果分析

目的:探究牙周炎患者应用不同种植系统修复后对种植体边缘骨吸收及龈沟液成分差异的影响.方法:以2019年4月～2020年4月在德州市人民医院口腔科接受牙体种植术治疗的牙周炎患者66例为对象,依据治疗方法不同分为士卓曼组(31例,46颗患牙)、奥齿泰组(16例,27颗患牙)、威高组(19例,21颗患牙),分别植入士卓曼种植...     

Occlusal stability in implant prosthodontics -- clinical factors to consider before implant placement

The success of any prosthetic design depends on proper management of the occlusion. The clinical variables influencing occlusal stability must be determined and considered in the design of the final prosthesis. This paper outlines some of these variables.     

Zirconia in fixed implant prosthodontics

Background: CAD/CAM technology in combination with zirconia ceramic has increasingly gained popularity in implant dentistry. Purpose: This narrative review presents the current knowledge on zirconia utilized as framework material for implant‐borne restorations and implant abutments, laboratory tests and developments, clinical performance, and possible future trends for implant dentistry are addressed. Material and Methods: A review of available literature from 1990 through 2010 was conducted with search terms zirconia,”“implants,”“abutment,”“crown,” and “fixed dental prosthesis” using electronic databases (PubMed) and manual searching. Results: Latest applications of zirconia in implant dentistry include implant abutments, multiple unit and full‐arch frameworks as well as custom‐made bars to support fixed and removable prostheses. High biocompatibility, low bacterial surface adhesion as well as favorable chemical properties of zirconia ceramics are reported. Zirconia stabilized with yttrium oxide exhibits high flexural strength and fracture toughness due to a transformation toughening mechanism. Preliminary clinical data confirmed the high stability of zirconia for abutments and as a framework material for implant borne crowns and fixed dental prostheses. Zirconia abutment or framework damage has rarely been encountered. However, veneering porcelain fractures are the most common technical complication in implant‐supported zirconia restorations. These porcelain veneer failures have led to concerns regarding differences in coefficient of thermal expansions between core and veneering porcelain and their respective processing techniques. Conclusion: As presently evidence of clinical long‐term data is missing, caution with regard to especially extensive implant‐borne zirconia frameworks is recommended.     

Biomechanical considerations in implant prosthodontics

The dentist who uses implants in conjunction with natural abutment teeth should apply the same principles and guidelines that have proved themselves in fixed and removable prosthodontics. This article reviewed the basic biomechanical principles of span deflection and Class I lever systems as they may apply to fixed prosthodontics with and without implant abutments.     

Goals and limitations of implant prosthodontics

Goal-driven treatment plans promote an accurate differential diagnosis resulting in appropriate implant prosthodontic treatment. The identification, understanding, and acceptance of the limitations of therapy assist both the doctor and the patient in achieving their objectives and minimizing disappointments. The implementation of such a regimen helps to achieve a successful result.     

The role of complete denture principles in implant prosthodontics

During the past 30 years, there has been a growth of implant courses in dental schools at the predoctoral level to meet a burgeoning demand. At the same time, there has been a concomitant reduction in curriculum time devoted to clinical and technical aspects of complete denture construction. There will be a sizable cohort of patients with limited natural dental landmarks seeking implant reconstructions that may be difficult for the general practitioner to restore. This article reviews basic prosthodontic principles and procedures that are important to understand when designing an implant prosthesis.     

Digital technology in fixed implant prosthodontics

Digital protocols are increasingly influencing prosthodontic treatment concepts. Implant‐supported single‐unit and short‐span reconstructions will benefit mostly from the present digital trends. In these protocols, monolithic implant crowns connected to prefabricated titanium abutments, which are created based on data obtained from an intraoral scan followed by virtual design and production, without the need of a physical master cast, have to be considered in lieu of conventional manufacturing techniques for posterior implant restorations. No space for storage is needed in the complete digital workflow, and if a remake is required a replica of the original reconstruction can be produced quickly and inexpensively using rapid prototyping. The technological process is split into subtractive methods, such as milling or laser ablation, and additive processing, such as three‐dimensional printing and selective laser melting. The dimensions of the supra‐implant soft‐tissue architecture can be calculated in advance of implant placement, according to the morphologic copy, and consequently are individualized for each patient. All these technologies have to be considered before implementing new digital dental workflows in daily routine. The correct indication and application are prerequisite and crucial for the success of the overall therapy, and, finally, for a satisfied patient. This includes a teamwork approach and equally affects the clinician, the dental assistant and the technician as well. The digitization process has the potential to change the entire dental profession. The major benefits will be reduced production costs, improvement in time efficiency and fulfilment of patients’ perceptions of a modernized treatment concept.