Gopal Tulsani Minal, Rohinikumar Subhasree, N Thiyaneswaran, Maiti Subhabrata
Department of Prosthodontics, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Science, Saveetha University, Chennai, India.
Department of Prosthodontics and Implantology, Saveetha Dental College, Saveetha Institute of Medical and Technical Science, Saveetha University, Chennai-77, India.
J Long Term Eff Med Implants. 2020;30(3):219-226. doi: 10.1615/JLongTermEffMedImplants.2020035970.
This retrospective study aims to evaluate the association between submandibular fossa anatomy and implant length in the posterior mandibular region. The study took place from June 1, 2019 to March 1, 2020, during which 295 implants were placed in the posterior mandibular region. Data were reviewed and analyzed from 86,000 patient records that were documented at a private institution. Statistical analysis was performed to assess the association between submandibular fossa anatomy and implant length in the posterior mandibular region. Of the 295 implants, 29.2% were placed in subjects aged 36-45 yr, and 52.9% were male. Of the total population, 52.2% had type P (parallel) submandibular fossa anatomy. The 10-mm implant was the size that was most commonly used (frequency rate, 60.3%). A prevalence of submandibular fossa according to gender showed that 53.8% of males and 50.4% of females had type P (parallel buccal and lingual) plates. A statistically significant difference was found when comparing implant length to different types of submandibular fossa by gender (p < 0.05). And, when association was compared between types of submandibular fossa and implant length, a statistically significant association was found. We conclude that high risk occurs when implants are placed in the mandibular posterior region, because many complications can arise. Proper treatment planning is necessary after complete evaluation using cone-beam computed tomography.
这项回顾性研究旨在评估下颌后牙区下颌下窝解剖结构与种植体长度之间的关联。该研究于2019年6月1日至2020年3月1日进行，在此期间，在下颌后牙区植入了295颗种植体。对一家私立机构记录的86,000份患者病历数据进行了回顾和分析。进行统计分析以评估下颌后牙区下颌下窝解剖结构与种植体长度之间的关联。在295颗种植体中，29.2%植入了年龄在36 - 45岁的受试者，52.9%为男性。在总人群中，52.2%具有P型（平行）下颌下窝解剖结构。10毫米的种植体是最常用的尺寸（频率为60.3%）。按性别划分的下颌下窝患病率显示，53.8%的男性和50.4%的女性具有P型（颊侧和舌侧平行）骨板。比较种植体长度与不同性别下颌下窝类型时发现有统计学显著差异（p < 0.05）。并且，比较下颌下窝类型与种植体长度之间的关联时，发现有统计学显著关联。我们得出结论，在下颌后牙区植入种植体时存在高风险，因为可能会出现许多并发症。在使用锥形束计算机断层扫描进行全面评估后，进行适当的治疗计划是必要的。
