Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich, Zurich, Switzerland.
Department of Conservative Dentistry, Faculty of Dentistry, University of Chile, Santiago, Chile.
J Clin Periodontol. 2023 Oct;50(10):1336-1347. doi: 10.1111/jcpe.13847. Epub 2023 Jul 10.
The aim of this investigation was to estimate the prevalence, severity and extent of mid-buccal gingival recessions (GRs; classified according to the 2018 Classification System) and to identify their risk indicators in the South American population.
Epidemiological data from two cross-sectional studies-performed on 1070 South American adolescents and 1456 Chilean adults-were obtained. All participants received a full-mouth periodontal examination by calibrated examiners. GR prevalence was defined as the presence of at least one mid-buccal GR ≥ 1 mm. GRs were also categorized into different recession types (RTs) according to the 2018 World Workshop Classification System. Analyses for RT risk indicators were also performed. All analyses were carried out at the participant level.
The prevalence of mid-buccal GRs was 14.1% in South American adolescents and 90.9% in Chilean adults. In South American adolescents, the prevalence of RTs was 4.3% for RT1 GRs, 10.7% for RT2 GRs and 1.7% for RT3 GRs. In Chilean adults, the prevalence of RT1 GRs was 0.3%, while the prevalence of RT2 and RT3 GRs was 85.8% and 77.4%, respectively. Full-Mouth Bleeding Score (FMBS; <25%) was associated with the presence of RT1 GRs in adolescents. The risk indicators for RT2/RT3 GRs mainly overlapped with those for periodontitis.
Mid-buccal GRs affected 14.1% of South American adolescents, whereas they affected most of the Chilean adult population (>90%). While RT1 GRs are more commonly observed in a non-representative cohort of South American adolescents (when compared to Chilean adults), the majority of Chilean adults exhibit RT2/RT3 GRs.
本研究旨在评估南美人群中颊侧中部牙龈退缩（GR；根据 2018 年分类系统进行分类）的流行率、严重程度和程度，并确定其风险指标。
本研究从两项横断面研究中获取了流行病学数据，一项是在 1070 名南美青少年中进行的，另一项是在 1456 名智利成年人中进行的。所有参与者均由经过校准的检查者进行了全口牙周检查。GR 的患病率定义为至少存在一个颊侧中部 GR≥1mm。根据 2018 年世界工作会议分类系统，还将 GR 分为不同的退缩类型（RT）。还对 RT 风险指标进行了分析。所有分析均在参与者水平上进行。
南美青少年中颊侧中部 GR 的患病率为 14.1%，智利成年人中为 90.9%。在南美青少年中，RT1 GR 的患病率为 4.3%，RT2 GR 的患病率为 10.7%，RT3 GR 的患病率为 1.7%。在智利成年人中，RT1 GR 的患病率为 0.3%，而 RT2 和 RT3 GR 的患病率分别为 85.8%和 77.4%。青少年中 FMBS（<25%）与 RT1 GR 的存在相关。RT2/RT3 GR 的风险指标主要与牙周炎的风险指标重叠。
颊侧中部 GR 影响了 14.1%的南美青少年，而大部分智利成年人都患有 GR（>90%）。虽然 RT1 GR 在代表性不足的南美青少年队列中更为常见（与智利成年人相比），但大多数智利成年人都存在 RT2/RT3 GR。
