即刻负载种植体周围软组织的生物学宽度和形态特征：在人体解剖标本上进行的研究。

Biologic width and morphologic characteristics of soft tissues around immediately loaded implants: studies performed on human autopsy specimens.

机构信息

Unit of Laser Dentistry, Division of Periodontology, Eastman Institute for Oral Health, University of Rochester, Rochester, NY, USA.

出版信息

J Periodontol. 2010 Jan;81(1):70-8. doi: 10.1902/jop.2009.090364.

DOI:10.1902/jop.2009.090364

PMID:20059419

Abstract

BACKGROUND

Esthetics and the health of oral implants are based upon the soft tissue reaction and biologic width (BW).

METHODS

Twelve dental implants were placed in the maxilla and mandible of a patient who smoked. Permanent standard abutments and temporary restorations were immediately fixed in place during the surgery stage. The definitive restorations were placed 4 months after loading without removal of the original abutments. After 10 months, the patient died, and the implants were removed en block and processed for histology.

RESULTS

The BW in the maxilla was 6.5 +/- 2.5 mm, whereas in the mandible, it was 4.8 +/- 1.3 mm (P = 0.017). The sulcular epithelium (SE) in the maxilla was 2.7 +/- 0.8 mm, whereas in the mandible, it was 1.7 +/- 0.4 mm (P <0.001). The junctional epithelium (JE) in the maxilla was 1.3 +/- 0.4 mm, whereas in the mandible, it was 1.5 +/- 0.5 mm (P = 0.164). The connective tissue (CT) in the maxilla was 2.5 +/- 1.3 mm, whereas in the mandible, it was 1.6 +/- 0.4 mm (P = 0.006). In the maxillary bone, the BW, SE, and CT were significantly longer than in the mandible, whereas for the JE, no statistically significant difference was observed.

CONCLUSION

The soft tissue organization around dental implants was different for upper and lower jawbones.

摘要

背景

美学和口腔种植体的健康基于软组织反应和生物学宽度（BW）。

方法

将 12 个牙科种植体放置在一位吸烟患者的上颌和下颌。在手术阶段，立即将永久性标准基台和临时修复体固定到位。在负荷 4 个月后，无需移除原始基台即可放置最终修复体。10 个月后，患者死亡，将种植体整块取出并进行组织学处理。

结果

上颌 BW 为 6.5 ± 2.5mm，而下颌 BW 为 4.8 ± 1.3mm（P = 0.017）。上颌龈沟上皮（SE）为 2.7 ± 0.8mm，而下颌 SE 为 1.7 ± 0.4mm（P <0.001）。上颌结合上皮（JE）为 1.3 ± 0.4mm，而下颌 JE 为 1.5 ± 0.5mm（P = 0.164）。上颌结缔组织（CT）为 2.5 ± 1.3mm，而下颌 CT 为 1.6 ± 0.4mm（P = 0.006）。在上颌骨中，BW、SE 和 CT 明显长于下颌骨，而 JE 则无统计学差异。