Abstract：
OBJECTIVE: The aims of Working Group 1 were to address the role (i) of the buccolingual bone dimensions after implant placement in healed alveolar ridge sites on the occurrence of biologic and aesthetic complications, and (ii) of soft tissue augmentation (STA) on the stability of clinical, radiographic, and patient-related outcomes of implant treatments.
METHODS: Two systematic reviews were prepared in advance of the Consensus Conference and were discussed among the participants of Group 1. Consensus statements, clinical recommendations, recommendations for future research, and reflections on patient perspectives were based on structured group discussions until consensus was reached among the entire group of experts. The statements were then presented and accepted following further discussion and modifications as required by the plenary.
RESULTS: Dimensional changes of the alveolar ridge occurred after implant placement in healed sites, and a reduction in buccal bone wall thickness (BBW) of 0.3 to 1.8 mm was observed. In healed sites with a BBW of <1.5 mm after implant placement, increased vertical bone loss, and less favorable clinical and radiographic outcomes were demonstrated. Implants with buccal dehiscence defects undergoing simultaneous guided bone regeneration, showed less vertical bone loss, and more favorable clinical and radiographic outcomes, compared to non-augmented dehiscence defects during initial healing. At healthy single implant sites, probing depths, bleeding and plaque scores, and interproximal bone levels evaluated at 1 year, remained stable for up to 5 years, with or without STA. When single implant sites were augmented with connective tissue grafts, either for soft tissue phenotype modification or buccal soft tissue dehiscence, stable levels of the soft tissue margin, and stable or even increased soft tissue thickness and/or width of keratinized mucosa could be observed from 1 to 5 years. In contrast, non-augmented sites were more prone to show apical migration of the soft tissue margin in the long-term. Favorable aesthetic and patient-reported outcomes after STA were documented to be stable from 1 to 5 years.
CONCLUSIONS: It is concluded that dimensional changes of the alveolar ridge occur after implant placement in healed sites and that sites with a thin BBW after implant placement are prone to exhibit less favorable clinical and radiographic outcomes. In addition, it is concluded that STA can provide stable clinical, radiographic, aesthetic, and patient-reported outcomes in the medium and long-term.
METHODS: Two systematic reviews were prepared in advance of the Consensus Conference and were discussed among the participants of Group 1. Consensus statements, clinical recommendations, recommendations for future research, and reflections on patient perspectives were based on structured group discussions until consensus was reached among the entire group of experts. The statements were then presented and accepted following further discussion and modifications as required by the plenary.
RESULTS: Dimensional changes of the alveolar ridge occurred after implant placement in healed sites, and a reduction in buccal bone wall thickness (BBW) of 0.3 to 1.8 mm was observed. In healed sites with a BBW of <1.5 mm after implant placement, increased vertical bone loss, and less favorable clinical and radiographic outcomes were demonstrated. Implants with buccal dehiscence defects undergoing simultaneous guided bone regeneration, showed less vertical bone loss, and more favorable clinical and radiographic outcomes, compared to non-augmented dehiscence defects during initial healing. At healthy single implant sites, probing depths, bleeding and plaque scores, and interproximal bone levels evaluated at 1 year, remained stable for up to 5 years, with or without STA. When single implant sites were augmented with connective tissue grafts, either for soft tissue phenotype modification or buccal soft tissue dehiscence, stable levels of the soft tissue margin, and stable or even increased soft tissue thickness and/or width of keratinized mucosa could be observed from 1 to 5 years. In contrast, non-augmented sites were more prone to show apical migration of the soft tissue margin in the long-term. Favorable aesthetic and patient-reported outcomes after STA were documented to be stable from 1 to 5 years.
CONCLUSIONS: It is concluded that dimensional changes of the alveolar ridge occur after implant placement in healed sites and that sites with a thin BBW after implant placement are prone to exhibit less favorable clinical and radiographic outcomes. In addition, it is concluded that STA can provide stable clinical, radiographic, aesthetic, and patient-reported outcomes in the medium and long-term.
摘要：
目的：第1工作组的目的是解决（i）种植体放置在愈合的牙槽脊部位后，颊舌骨尺寸对生物和美学并发症发生的作用，和（ii）软组织增强（STA）对临床稳定性的影响，射线照相,和患者相关的植入治疗结果。
方法：在共识会议之前准备了两个系统综述，并在第1组的与会者中进行了讨论。共识声明,临床建议,对未来研究的建议，对患者观点的思考是基于结构化的小组讨论，直到整个专家组达成共识。随后，根据全体会议的要求进行了进一步的讨论和修改，然后提出并接受了这些声明。
结果：在愈合部位放置植入物后，牙槽脊的尺寸发生了变化，并且观察到颊骨壁厚度（BBW）减少了0.3至1.8mm。植入后BBW<1.5mm的愈合部位,垂直骨丢失增加，并证明临床和影像学结局较差。口腔裂开缺损的植入物同时进行引导骨再生，显示垂直骨丢失较少，以及更有利的临床和影像学结果，与初始愈合期间的非增强开裂缺陷相比。在健康的单个植入部位，探测深度,出血和斑块评分，和1年时评估的邻间骨水平，保持稳定长达5年，有或没有STA。当单个植入部位增加结缔组织移植物时，对于软组织表型修饰或颊软组织裂开，软组织边缘的稳定水平，在1至5年内，可以观察到稳定或甚至增加的软组织厚度和/或角化粘膜的宽度。相比之下,长期非扩张部位更容易出现软组织边缘的根尖迁移.STA后良好的美学和患者报告的结果被证明在1至5年内是稳定的。
结论：可以得出的结论是，在愈合部位放置植入物后，牙槽脊的尺寸发生了变化，并且在植入物放置后具有薄BBW的部位倾向于表现出较差的临床和影像学结果。此外,结论STA可以提供稳定的临床，射线照相,美学，以及患者报告的中期和长期结局。
方法：在共识会议之前准备了两个系统综述，并在第1组的与会者中进行了讨论。共识声明,临床建议,对未来研究的建议，对患者观点的思考是基于结构化的小组讨论，直到整个专家组达成共识。随后，根据全体会议的要求进行了进一步的讨论和修改，然后提出并接受了这些声明。
结果：在愈合部位放置植入物后，牙槽脊的尺寸发生了变化，并且观察到颊骨壁厚度（BBW）减少了0.3至1.8mm。植入后BBW<1.5mm的愈合部位,垂直骨丢失增加，并证明临床和影像学结局较差。口腔裂开缺损的植入物同时进行引导骨再生，显示垂直骨丢失较少，以及更有利的临床和影像学结果，与初始愈合期间的非增强开裂缺陷相比。在健康的单个植入部位，探测深度,出血和斑块评分，和1年时评估的邻间骨水平，保持稳定长达5年，有或没有STA。当单个植入部位增加结缔组织移植物时，对于软组织表型修饰或颊软组织裂开，软组织边缘的稳定水平，在1至5年内，可以观察到稳定或甚至增加的软组织厚度和/或角化粘膜的宽度。相比之下,长期非扩张部位更容易出现软组织边缘的根尖迁移.STA后良好的美学和患者报告的结果被证明在1至5年内是稳定的。
结论：可以得出的结论是，在愈合部位放置植入物后，牙槽脊的尺寸发生了变化，并且在植入物放置后具有薄BBW的部位倾向于表现出较差的临床和影像学结果。此外,结论STA可以提供稳定的临床，射线照相,美学，以及患者报告的中期和长期结局。
