Following a comprehensive patient examination, including the assessment of periodontal and peri‐implant diseases as well as considering the patient's needs, a pretherapeutic prognosis for each tooth and implant is given. Teeth and implants with a secure pretherapeutic prognosis require simple procedures and may be regarded as secure abutments for function and with a doubtful pretherapeutic prognosis usually need a comprehensive therapy. Such teeth and implants must be brought into the category with a secure prognosis by means of additional therapy such as endodontic, restorative, and surgical procedures. Teeth and implants with a hopeless pretherapeutic prognosis should be extracted/explanted during the initial phase of cause‐related therapy (i.e., infection control). For example, teeth with vertical root fracture or unrestorable caries and implants with mobility or unrestorable malposition fall into the category of hopeless units. The primary goal of periodontal and peri‐implant therapy should be to arrest disease progression. The latest consensus statement highlights that periodontitis can be successfully controlled and treated teeth can be retained for life. Nevertheless, for patients with uncontrolled contributing factors, the endpoints might not always be achievable, and low disease activity may be an acceptable therapeutic goal. Similarly, the management of peri‐implantitis frequently requires surgical intervention following nonsurgical therapy due to incomplete treatment outcomes. Different surgical modalities can be effective and lead to significant improvement; however, achieving complete resolution of peri‐implantitis is challenging, not always predictable, and can depend on multiple baseline factors. Therefore, this review aims at summarising available evidence on the rationale for incorporating systemic, lifestyle‐related, clinical, and radiographic prognostic factors into treatment planning of patients diagnosed with periodontal and peri‐implant diseases.

中文翻译：

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治疗计划中与牙齿和种植体相关的预后因素


经过全面的患者检查，包括牙周和种植体周围疾病的评估以及考虑患者的需求，对每颗牙齿和种植体给出治疗前预后。具有安全的治疗前预后的牙齿和种植体需要简单的手术，并且可以被视为功能安全的基台，而具有可疑的治疗前预后的牙齿和种植体通常需要综合治疗。此类牙齿和种植体必须通过牙髓、修复和外科手术等附加治疗方法纳入具有安全预后的类别。治疗前预后无望的牙齿和种植体应在病因相关治疗（即感染控制）的初始阶段拔除/移植。例如，具有垂直牙根断裂或不可恢复的龋齿的牙齿以及具有活动性或不可恢复的错位的种植体均属于无希望的单元类别。牙周和种植体周围治疗的主要目标应该是阻止疾病进展。最新的共识声明强调，牙周炎可以成功控制，治疗后的牙齿可以终身保留。然而，对于影响因素不受控制的患者来说，终点可能并不总是可以实现的，低疾病活动度可能是可接受的治疗目标。同样，由于治疗结果不完整，种植体周围炎的治疗经常需要在非手术治疗后进行手术干预。不同的手术方式可以有效并带来显着的改善；然而，实现种植体周围炎的完全解决具有挑战性，并不总是可预测的，并且可能取决于多个基线因素。 因此，本综述旨在总结现有证据，说明将全身、生活方式相关、临床和放射学预后因素纳入诊断为牙周和种植体周围疾病的患者的治疗计划的基本原理。