即刻种植和早期种植对前牙美学区种植体周围软组织的影响分析

目的:分析即刻种植和早期种植对前牙美学区种植体周边软组织的影响。方法:随机抽取我院于2015年8月至2019年8月期间收治的60例单颗前牙缺失患者,其中有30例患者于拔牙后行即刻种植(观察组),30例拔牙后行早期植入(对照组),均予以Astra Tech种植体及种植体植入半年后给予氧化锆全瓷修复,并在半年后复查,对比分析两组患者的红色美学评分(PES)等。结果:两组患者对比PES总分和各节点PES评分无明显差异(P>0.05)而在各节点PES评分中,牙龈生物型和牙槽骨缺损、远中龈乳头,缺失牙位和牙龈高度及缺牙原因和近、远中龈高度存在显著相关性。结论:即刻种植和早期种植对前牙美学区种植体周边软组织之间的影响差异不明显,对前牙美学区种植体修复时软组织美学产生的主要影响包括缺失牙位、牙龈生物型及缺牙原因。     

上前牙区即刻种植修复的软组织效果评估

目的：评估上前牙区即刻种植联合即刻修复的软组织效果。方法上前牙区单牙即刻种植患者26例,微创拔牙后植入ZIMMER TSV种植体,获得良好初期稳定性并实施即刻修复,经过6～12个月骨结合和牙龈塑形后完成上部修复,观察负重6个月后牙龈组织情况。结果26例患者完成骨整合及最终修复,负重正常,无探诊出血、牙龈红肿,近中龈乳头、远中龈乳头及龈缘高度降低分别为（0．52±0．22） mm、（0．56±0．31） mm 和（0．71±0．34） mm,差异无统计学意义（F＝1．297,P＝0．29）。结论上前牙区单牙即刻种植联合即刻修复存在不同程度的软组织退缩。     

Benex微创拔牙技术在前牙不翻瓣即刻种植中的临床应用

目的:探讨Benex微创拔牙技术在前牙不翻瓣即刻种植中的技术要点,并评价其临床效果.方法:25例无法保留、需要拔除并具备即刻种植适应证的上前牙残根患者,接受Benex微创拔牙不翻瓣即刻种植.种植体植入同期安装愈合基台,4～6个月后行纵向螺钉固定,暂时冠修复,进行软组织塑形,3个月后完成永久修复.记录拔牙所需时间并应用视觉模拟评估量表(VAS)评估该方法的难易程度.影像学检查评估种植术后即刻及种植修复后1年种植体骨结合及边缘骨吸收.根据改良软组织美学指数(PES)评价拔牙术前及修复1年后的牙龈美学效果.采用SPSS13.0软件包对数据进行统计学分析.结果:25颗种植体均获得良好的骨结合,随访期间无种植体脱落,修复后1年种植体边缘骨吸收(0.21±0.23) mm.拔牙后PES为8.8±1.19,与拔牙前相比,差异无显著性(P＞0.05).拔牙平均需时6.87 min,操作相对简便,VAS值为3.32.所有患者对拔牙过程及修复效果满意.结论:Benex微创拔牙技术操作简单,适用于上颌前牙不翻瓣即刻种植,对软、硬组织无损伤,患者对治疗过程及种植修复效果满意.     

上颌前牙早期种植的临床应用

目的 探讨上颌前牙缺牙区行早期种植的效果及技术要点。方法 对22例上前牙病变患者行微创拔牙,术后4~8周共植入种植体28枚,其中10例伴骨缺损者采用GBR技术,同期植入人工骨粉及胶原膜,严密关闭切口,3~6个月后行永久修复。随访时间6~27个月（平均12个月）。在此期间检查种植体稳固性,牙龈及龈乳头外形;X线检查种植体骨结合情况;评价临床成功率及美学修复效果。结果 28枚种植体存留率为100%。牙龈形态良好,色泽正常,无明显探诊出血,与对侧同名牙牙龈形态基本对称。复查X线片种植体颈部边缘骨吸收均小于1.5 mm。结论 上前牙早期种植应用于临床方法可行,修复缺牙美学效果良好。     

上颌前牙单牙不翻瓣即刻种植修复的临床研究

目的：旨在探讨上颌美学区域单牙不翻瓣即刻种植修复的技术特点及临床效果。材料与方法：16例上颌前牙单牙进行不翻瓣即刻种植修复。纳入条件：唇侧骨板完整,唇侧牙槽嵴骨面距龈缘3mm左右。微创拔牙,偏腭侧植入种植体,同时种植体植入深度为龈缘下3mm左右。种植体与唇侧骨板之间间隙至少2mm,间隙内植入BioOss颗粒。薄龈生物型、术前龈缘高度偏根方的患者,进行结缔组织移植。术后4-6周采用种植体支持过渡义齿修复,进行牙龈诱导塑形。采用Jemt牙间乳头的分类标准测量种植修复后牙间乳头的高度。采用PES（pinkestheticscore）评分系统评价软组织整体美学效果。PES涉及种植体周围软组织美学的多个因素,包括种植体两侧龈乳头高度、边缘龈水平、软组织轮廓、牙槽突度、软组织质地、软组织颜色7组评分指数,每组由低到高有0、1、2三个记分值,总分最低为0,最高为14。采用CBCT评估唇侧骨板厚度。结果：16位患者16颗种植体平均追踪时间21.8月（12-34月）,至最后一次复查种植体无脱落。根据Jemt牙间乳头评估标准：0度0牙位,Ⅰ度0牙位,Ⅱ度2牙位,Ⅲ度14牙位,Ⅳ度0牙位。PES评分：12分2牙位,13分8牙位,14分6牙位。CBCT显示唇侧骨板厚度得到维持。结论：不翻瓣即刻种植技术可以获得可靠的美学效果,前提是需严格适应证选择,评估局部位点软硬组织解剖条件,采用微创拔牙技术,保证种植体三维方向的准确性,尤其是种植体在唇舌向的位置与轴向,以及种植体植入的深度。并根据位点牙龈情况进行相应的软组织处理,合理选择过渡义齿的方式和戴用时机进行牙龈诱导,并注意修整修复体的唇侧穿龈轮廓为凹形设计,勿使其膨大。     

上前牙即刻种植后即刻修复与使用愈合基台效果的对比研究

目的 比较使用临时义齿即刻修复和直接使用愈合基台对上前牙即刻种植疗效的影响.方法 选择适合即刻种植的上前牙病例,种植体植入后分组行临时义齿即刻修复和愈合基台封闭牙龈,术后6个月开始牙龈塑形,最后行氧化锆全瓷冠永久修复.通过测量不同时期种植体颈缘骨吸收量、牙龈红色美学评分(PES)来比较两组间的差异.结果 两组种植体均能...     

临时冠塑形对前牙种植美学的临床观察

目的 在前牙区通过利用临时冠对种植体周围软组织进行塑形,观察最终修复的美学效果及软组织的稳定性。方法 选取本院种植科21例上前牙需要种植病例,牙种植后即刻或延期行临时冠修复,对种植体周围软组织进行塑形,待软组织稳定后,行个性化转移杆取模,制作最终修复体,使用红色美学指数（PES）来评价种植体周围软组织的美学效果。结果 11例患者PES≥12,9例8≤PES≤11,获得较好的美学效果。1例患者前牙区种植体支持固定桥修复,由于牙槽骨水平吸收,牙龈退缩,后期通过牙龈瓷进行美学处理。21例患者最终修复后观察1年,通过PES再次评价,同样获得较好的美学效果。结论 前牙种植术后利用临时冠对软组织进行塑形,能够将软组织调整到较好的美观外形,并且形态较稳定。此方法在前牙区种植修复是必要的,值得在临床中广泛推广。     

Straumann种植体在上颌前牙区即刻种植修复中的应用

目的 评估Straumann种植体即刻种植修复上颌前牙区的近期临床效果。方法 临床选择28例上前牙残根患者,在拔牙后即刻植入Straumann种植体40枚。其中11例15个牙位行不翻瓣种植,17例25个牙位采取翻瓣GBR技术即刻种植。3～9个月后行永久性修复。随访3～36月,临床观察种植体、基台和牙冠的稳固性,牙龈组织、龈乳头情况及牙冠美观状况。结果 所有种植体均发生骨结合,无松动现象,未见种植体周围炎表现,即刻种植存活率为100%。不翻瓣种植病例的唇侧龈缘无明显退缩,牙龈乳头无明显丧失;翻瓣植骨的病例唇侧牙龈缘少许退缩,牙龈乳头轻度丧失。修复体外形美观,周围牙龈形态正常,功能良好,患者满意。结论 在严格掌握适应证和注意术中术后各种细节的情况下,应用Straumann种植体即刻种植修复上颌前牙区可获得理想的美学修复效果。     

Zimmer种植体在上前牙即刻种植与修复中的临床应用

目的探讨Zimmer种植体在微创拔除上颌前牙即刻种植与修复中临床效果。 方法20例患者共20颗无法保留的上颌前牙,Benex微创拔牙器械拔牙后,Zimmer种植体即刻植入,其中2例患者唇侧骨板内侧植入天博人工骨粉并覆盖海奥可吸收膜,临时冠塑型及修复,3~6个月后行永久修复。术后随访观察2年,通过临床和影像学检查评估修复体的临床效果。 结果20例患者的20颗患牙经过2年随访,成功20例（100%）。 结论上颌前牙区采用微创拔牙器械拔除患牙,即刻植入Zimmer种植体及制作临时修复体,短期临床效果良好。     

前牙区即刻种植的美学效果观察

目的：探讨前牙区即刻种植永久修复后的牙龈美学效果。方法：22例前牙缺失病例,行不翻瓣拔牙同期植入28颗种植体,上前牙24颗采用非埋入式种植术式,下前牙4颗采用埋入式种植术式,种植体愈合3-4个月进行永久修复。随访时间为12-30个月（平均18个月）。根据Miller牙龈边缘组织退缩分类及Jemt牙龈乳头指数,分别观察种植体永久修复12个月后的牙龈边缘退缩及牙龈乳头状况;根据Albrektsson种植体成功标准,观察所植入的种植体状况。结果：28颗种植体留存率100%。Miller分类,18颗种植体牙龈边缘无退缩;8颗种植体牙龈边缘Ⅰ类退缩;2颗种植体牙龈边缘Ⅱ类退缩。种植修复体近远中Jemt牙龈乳头指数均为Ⅱ级以上。结论：前牙区即刻种植,延期修复是一项较成熟的手术方法,但须严格掌握适应症,才能获得良好的修复效果。     

单个前牙种植体即刻种植和即刻修复的牙龈美学效果评价

目的:评价种植体即刻种植即刻修复的牙龈美学效果及患者对美观的满意度.方法:观察28例患者28枚ITI种植体在单个前牙种植体即刻种植即刻临时冠修复,对种植义齿周围的牙龈美观状况及相应的软组织健康状况进行观察,并对患者满意度进行调查,托槽弓丝固定3个月,6个月后行永久烤瓷冠修复.结果:12个月时所有种植体都发生了骨结合现象,种植义齿周围的软组织外形正常,牙问乳头外形大小与菌斑附着,龈炎并不相关.患者对即刻种植修复的美学效果均非常满意.结论:在严格掌握适应证的前提下,单个前牙即刻种植修复比延期修复可获得更佳的软组织外形,尤其是牙间乳头外形大小达到更理想的美学效果.     

美学区单牙即刻种植即刻诱导牙龈成形的临床观察

目的观察美学区单牙即刻种植即刻采用临时冠进行牙龈诱导成形的临床效果。方法 2012年3月—2014年9月,选择满足适应证的上颌前牙单牙即刻种植修复患者共45例,随机平均分为A、B、C 3组,每组15例。A组术后即刻采用临时冠进行牙龈诱导成形;B组术后延期采用临时冠诱导牙龈成形;C组术后只安装愈合基台过渡,3个月后进行永久冠修复。修复完成后当天、6个月及12个月,以红色美学指数(PES)对种植体周围软组织进行美学评价;同时在永久修复一年后以视觉模拟评分法(VAS)对患者进行美观满意度调查。结果在追踪评估期间内,A、B、C 3组病例永久修复完成当天PES评分分别为(12.17±1.26)、(11.69±1.08)、(8.73±1.02),统计学分析可见A、B两组之间差异不明显(P>0.05),A、C和B、C两组差异显著,具有统计学意义(P<0.05)。另外,一年后随访调查发现A组患者的美观满意度(92.6%)也明显高于B、C组(87.3%、69.6%)。结论美学区单牙即刻种植即刻采用临时冠诱导牙龈成形技术,临床上具有可行性、短期美学效果可靠,患者满意度较高,但需要严格把握适应证。     

微创拔牙即刻种植的牙龈美学效果观察

目的探讨微创拔牙即刻种植技术的临床特点及修复后的牙龈美学效果。方法21例上前牙单个缺失病例，行不翻瓣微创拔牙同期23颗种植体即刻植入，并且同期安装愈合基台直接暴露于口腔，即非埋入式种植术式，种植体愈合6个月后进行永久修复。种植永久修复后观察时间平均27．6个月（13～51个月）。根据Jemt牙龈乳头指数（papilla index score，PIS）观察种植体永久修复12个月后的近远中牙龈乳头状况，根据Flirhauser的改良红色美学指数观察种植体永久修复1年后与相邻天然牙唇侧龈缘位置的协调性；唇侧软组织与相邻天然牙唇侧牙龈色泽协调性。结果23颗种植体均获得良好的骨结合；种植修复体近远中PIS均为Ⅱ级以上。种植修复体与相邻天然牙唇侧牙龈缘水平位置协调性一致的15颗，8颗不协调；唇侧软组织色泽与相邻天然牙协调一致的18个牙位，5个牙位有轻度差异。结论微创拔牙即刻种植术是一项要求较高的技术，多因素影响软组织美学效果，严格掌控适应证，才能获得理想修复效果。     

Immediate restoration of implants placed into fresh extraction sockets for single-tooth replacement: a prospective clinical study

The aim of the present clinical study was to evaluate the placement of transmucosal implants into fresh extraction sockets and their immediate restoration with temporary crowns. A series of 22 cases with a 12-month follow-up is presented. Twenty-two patients (15 women and 7 men; mean age 39 years) who needed a single tooth replaced because of vertical or horizontal root fracture, caries, endodontic lesions, or periodontal disease were treated with immediate postextraction implant placement. The implant was then restored with a screw-retained prosthetic restoration within 24 hours. Radiographic assessments were made at baseline and 12 months after implant placement. Clinical parameters, such as plaque score, mucositis score, probing attachment level, mucosal margin position, variation of gingival level, and variation of papilla position, were also measured at baseline and after 12 months of follow-up. At 12 months, no implants had failed. Radiographic examination revealed mean bone resorption of 0.5 mm at 12 months compared to baseline. The mean variation of gingival level, compared to the neighboring teeth, was -0.75 mm. Probing attachment levels were 0.79, 0.45, and 0.54 mm at proximal, buccal, and lingual sites, respectively. The values for the mucosal margin position were 2.9, 2.2, and 2.4 mm at proximal, buccal, and lingual sites, respectively. Regarding variation of papilla position, according to Jemt's index, 27 papillae presented with a score of 2 (61%) and 17 with a score of 3 (39%). An examination of oral hygiene and peri-implant soft tissue conditions at the 12-month follow-up visit revealed an overall frequency of plaque-carrying implant surfaces of 13%. Furthermore, mucositis (score 2) was not observed at any of the peri-implant units. Primary implant stability did not significantly increase over time. The immediate restoration of dental implants placed into fresh extraction sockets was shown to be a safe and predictable procedure. The success rate and radiographic and clinical results were comparable to those obtained following the standard protocol. Within the limits of the present investigation, immediate restoration of single-tooth implants placed in fresh extraction sockets can be considered a valuable option to replace a missing tooth. However, long-term clinical trials are needed to confirm the present results.     

即刻种植修复上前牙的临床美学疗效观察

目的：评价上颌前牙即刻种植即刻修复的临床美学效果。方法：临床选择26例上前牙残根患者,在拔牙后即刻植入Xive种植体26枚,同时接入基台行复合树脂临时冠/桥修复,6个月后,行永久性修复。种植后嘱患者按期复查,评价应用效果。结果：种植牙修复后咀嚼功能恢复良好,种植体周围软组织健康美观。修复体单冠和修复基台的接缝位于龈下,种植牙给人以从龈下长出来的视觉效果。24名患者对修复体及其临床应用效果和美观效果都评价为满意,1枚种植体发生周围炎,1颗烤瓷冠崩瓷。满意度为92.31%。结论：Xive种植体在上颌前牙缺失即刻种植即刻修复中能够获得满意的临床效果。但要注意种植中软、硬组织和修复体的美学处理。     

A retrospective analysis of peri-implant tissue responses at immediate load/provisionalized microthreaded implants

PURPOSE: The aim of this retrospective study was to examine the peri-implant tissue status at immediately provisionalized anterior maxillary implants 12 to 30 months following tooth replacement. MATERIALS AND METHODS: This is a retrospective study of 43 microthreaded, TiO2 grit-blasted implants placed in healed ridges and immediate extraction sockets to restore maxillary anterior and premolar teeth in 28 patients. The cortical bone position relative to the implant reference point was evaluated at implant placement and 6 to 30 months following restoration. Radiographs were assessed using 7x magnification. The distance from the reference point to the cortical bone was measured to +/- 0.1 mm. The relationship of the peri-implant mucosa to the incisal edge of the definitive prosthesis was recorded. RESULTS: Four implants in 3 individuals failed during the first 6 weeks following placement and provisional loading. Cortical bone adaptation from the time of implant placement up to 30 months following restoration ranged from 0.0 mm to 1.5 mm (average, 0.33 +/- 0.40 mm mesially and 0.28 +/- 0.37 mm distally). The mean radiographic measurements from the interproximal crestal bone to the contact point were 4.53 +/- -0.91 mm (mesial) and 4.06 +/- 0.98. Maintenance and growth of papilla was observed in this group of immediate provisionalized single-tooth implants. Definitive abutment or abutment screw loosening was not observed. DISCUSSION: The linear clinical and radiographic measures of peri-implant tissue responses suggest that proper implant placement is followed by supracrestal biological width formation along the abutment and preservation of toothlike tissue contours. This may influence buccal peri-implant tissue dimensions. CONCLUSIONS: Generalized maintenance of crestal bone and the increased soft tissue dimension with maintenance of peri-implant papilla were identified as expected outcomes for immediate loading/provisionalization of microthreaded, TiO2 grit-blasted implants. Control of peri-implant tissues can be achieved to provide predictable and esthetic treatment for anterior tooth replacement using dental implants.     

后牙即刻种植的临床观察

目的 :评价后牙即刻种植的方法、效果以及临床意义。方法 :对能满足即刻种植的20颗后牙经微创拔牙后,翻瓣或不翻瓣植入种植体,种植体周围植入骨粉,翻瓣者则覆盖生物膜。种植体植入3~6个月后常规取模,完成上部修复结构。种植体完成修复后随访6~34个月。结果:所有种植牙随访期间内正常行使功能,美学效果令人满意。CT示颊侧骨板骨吸收为(-0.65 mm±1.29 mm);近远中骨吸收为(1.23 mm±0.23 mm)。统计显示:即刻种植术前与术后龈乳头指数及种植体近远中骨吸收无明显差异,即刻种植后种植体颊向骨板吸收及种植体稳定系数与拔牙后牙槽嵴吸收有差异。结论:后牙即刻种植能有效维持种植体周围软硬组织的高度和宽度,对有即刻种植适应证的患者,可减少手术次数,缩短治疗时间,临床效果可靠。     

Immediately restored single implants in the aesthetic zone of the maxilla using a novel design: 1-year report

Objectives: To evaluate immediate placement and immediate restoration of a novel implant with a 12°‐angled prosthodontic platform, in fresh extraction sockets of the aesthetic zone of the maxilla. Materials and methods: Tapered, roughened surface implants of 4 mm (n=15) or 5 mm (n=13) diameter were placed in 27 participants (mean age: 47.1 years; range: 21–71 years) requiring an immediate replacement of single anterior maxillary teeth. Provisional screw‐retained all‐ceramic crowns were placed within 4 h following optical impressions. At 8 weeks (baseline), definitive screw‐retained all‐ceramic crowns were placed in occlusion. Results: Twenty‐six of the 28 implants met the inclusion criteria at surgery. Marginal bone levels revealed bone gain between surgery and baseline, and between baseline and 1 year of 0.2 mm (SD 0.75) and 0.78 mm (SD 2.45). Mean mid‐buccal mucosal margins showed gains of 0.2 mm (SD 0.44). Prosthodontic maintenance and the aesthetics of the screw‐retained implant crowns were facilitated by the external hex 12°‐angled prosthodontic platform on the novel implant design, re‐orientating the access cavity to the palatal or occlusal surfaces. All‐ceramic implant crowns showed a high success rate with low maintenance issues over 1 year. Conclusion: Tapered, roughened‐surfaced implants with a novel 12°‐angled prosthodontic platform immediately placed in fresh extraction sockets, immediately restored with provisional crowns and subsequent definitive crowns at 8 weeks were successful for 1 year. To cite this article:
Brown SDK, Payne AGT. Immediately restored single implants in the aesthetic zone of the maxilla using a novel design: 1‐year report.
Clin. Oral Impl. Res. 22 , 2011; 445–454.     

牙龈生物型对种植牙美学影响的研究进展

种植修复后常见的美学问题及其处理受到越来越多学者的重视,而牙龈生物型是影响种植修复后美学的主要因素之一,对种植体周围软硬组织的长期稳定和美观有较大的影响,对牙龈生物型进行术前评估具有重要的临床意义.笔者将从牙龈生物型的概念、对牙龈退缩和牙龈红色美学的影响以及对种植体周围软硬组织的影响等几个方面进行综述.