將拔完牙的牙窩立即植入transmucosal植體(頸部具Laser-Lok微溝槽)來進行軟硬組織型態的塑形。一項為期六個月再手術的前瞻性研究。

Soft and hard tissue modifications at immediate transmucosal implants (Laser-Lok microtextured collar) placed into fresh extraction sites. A six month prospective study with surgical re-entry.


作者：V Iorio Siciliano, G Marzo, A Blasi, C Cafiero, M Mignogna, M Nicolò
出處： Int J Periodontics Restorative Dent, Volume 34, Number 4, 2014. p. 541–549.

 

ABSTRACT摘要
 
Histological and clinical studies confirm that laser microtexturing of implant collars favors the attachment of connective fibers and reduces probing depth and peri-implant bone loss, when compared to machined collars. This prospective study aimed at assessing the alveolar dimensional changes after immediate transmucosal implants placement (Laser-Lok® microtextured collar) associated with bone regenerative procedures.  
組織學和臨床研究證實，與機械加工的植體頸部相較下，頸部具有雷射微溝槽的植體，有利於結締組織纖維的附著，並減少探測深度和植體牙周骨的流失。這前瞻性研究的目的是在評估立即植入 Transmucosal植體(頸部具Laser-Lok微溝槽)後與骨再生的空間變化。
 
MATERIALS AND METHODS材料和方法
 
Thirteen implants (Single-Stage Implant System®, BioHorizons, IPH. Inc.) were placed immediately into single-rooted extraction sockets. Periimplant defects were treated with bovine-derived xenografts and resorbable collagen membranes (Mem-Lok®, BioHorizons, IPH. Inc.).
將13支植體((Single-Stage 植體系統®, BioHorizons, IPH公司)立即植入拔完的牙窩中。使用取自牛的可吸收膠原再生膜(Mem-Lok®, BioHorizons, IPH公司)來進行植體牙周缺陷的治療。
 

 
RESULTS結果
 
At 6 months, all implants were successfully osseointegrated, yielding a survival rate of 100%. Figure 11 summarizes the mean change ± SD in vertical distances (IS-BD, ISCREST, and CREST-BD) as well as in horizontal distances (EC-I and IC-I) assessed at four sites per implant (mesial, buccal, distal, and lingual) between baseline and surgical reentry at 6 months. Statistically significant differences (P < .05) were observed in the mean changes in vertical distances IS-BD, CREST-BD, and IS-CREST between baseline and reentry (Figs 11a to 11c). No statistically significant differences(P > .99) were observed for EC-I recorded at interproximal sites, while statistically significant differences(P < .05) were observed in the mean changes in horizontal distance EC-I between baseline and reentry at the buccal and lingual aspects (Fig 11d). Statistically significant differences were recorded (P < .05) for the IC-I change between baseline and 6 months reentry (Fig 11e). Table 3 summarizes the mean change in the vertical and horizontal dimensions of marginal bone defects.At 6 months, all implants were successfully osseointegrated, yielding a survival rate of 100%. Figure 11 summarizes the mean change ± SD in vertical distances (IS-BD, ISCREST, and CREST-BD) as well as in horizontal distances (EC-I and IC-I) assessed at four sites per implant (mesial, buccal, distal, and lingual) between baseline and surgical reentry at 6 months. Statistically significant differences (P < .05) were observed in the mean changes in vertical distances IS-BD, CREST-BD, and IS-CREST between baseline and reentry (Figs 11a to 11c). No statistically significant differences(P > .99) were observed for EC-I recorded at interproximal sites, while statistically significant differences(P < .05) were observed in the mean changes in horizontal distance EC-I between baseline and reentry at the buccal and lingual aspects (Fig 11d). Statistically significant differences were recorded (P < .05) for the IC-I change between baseline and 6 months reentry (Fig 11e). Table 3 summarizes the mean change in the vertical and horizontal dimensions of marginal bone defects.
在6個月時，所有植入的植體已成功的骨整合，產生100%的存活率。圖11為6個月surgical reentry與baseline之間，將每個植體的四個部位(近心，頰側，遠心，舌側)的垂直距離(IS-BD, ISCREST, 和 CREST-BD)及水平線距離(EC-I 和 IC-I)的平均變化± SD的總結。圖11a至11c，在baseline和reentry之間，垂直距離IS-BD, CREST-BD, 和 IS-CREST的平均變化在統計學上的差異(P<0.05)。圖11d，EC-I在相鄰距離的記錄中並無顯著的差異(P>0.99)，而EC-I水平距離平均變化在頰側和舌側面的baseline 和reentry間的統計學上是有顯著的不同(P<0.05)。圖11e，IC-I變化的記錄中，baseline和6個月 reentry在統計學上是有顯著的差異(P<0.05)。表3總結了邊緣骨缺損的垂直和水平尺寸的變化。




 
Conclusions 結論
 
This prospective study shows that the application of bovine-derived xenograft covered with a resorbable collagen membrane to fill marginal defects around implants placed immediately after tooth extraction limits the horizontal alveolar bone resorption but not the vertical ridge resorption. The use of a Laser-Lok microtextured collar may provide more favorable conditions for the attachment of hard and soft tissues, and may reduce the level of marginal bone resorption and soft tissue recession.
這項前瞻性的研究顯示，在拔完牙後，立即在植體周圍的邊緣骨缺陷上覆蓋取自牛的可吸收式膠原再生膜，可限制水平齒槽骨的吸收，但不限制垂直牙嵴的吸收。使用頸部具有Laser-Lok微溝槽的植體，可提供軟硬組織附著更有利的條件，並可降低邊緣骨吸收和軟組織的衰退。
 
 

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