Influence of Implant Placement Experience on Placement Accuracy Using Dynamic Navigation Systems

Purpose : A dynamic navigation system specifically for implant placement surgery has been introduced in Japan. Unlike conventional guided surgery, a new surgical procedure is required for implant surgery using this system. The purpose of this study was to investigate whether past implant placement e...

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Published inJournal of Japanese Society of Oral Implantology Vol. 35; no. 2; pp. 119 - 124
Main Authors 中山 雪詩, 大橋 順太郎, AIJIMA Reona, YAMASHITA Yoshio
Format Journal Article
LanguageJapanese
Published Japanese Society of Oral Implantology 30.06.2022
公益社団法人 日本口腔インプラント学会
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Summary:Purpose : A dynamic navigation system specifically for implant placement surgery has been introduced in Japan. Unlike conventional guided surgery, a new surgical procedure is required for implant surgery using this system. The purpose of this study was to investigate whether past implant placement experience affects placement accuracy during implant surgery using a dynamic navigation system.Methods : The subjects were divided into a group with abundant implant placement experience (n=5) and an inexperienced group (n=20). Implant placement surgery was performed on a mandibular demonstration model using X-Guide®. After placement, the difference between the setting position and the actual placement position (starting point, tip position, embedding depth, embedding angle) was examined using the double scan method.Results : Comparisons were made between the two groups with different implant placement experience for each endpoint, but the errors in all measurement points were not significantly different between the two groups. Furthermore, the subjects were divided by length of career working as a dentist into those with less than 10 years (n=15) and 10 years or more (n=10), and the same examination was conducted. Again, there was no significant difference between the two groups in all the measurement points. A similar comparative study was performed by age bracket of the surgeon, but there was no significant difference in the error values in any of the four measurement points.Conclusion : The placement accuracy of the dynamic navigation system was not correlated with age, length of career as a dentist, or implant placement experience. Therefore, it is suggested that sufficient training is required when using this system regardless of experience with implants. 目的:インプラント埋入手術に特化したダイナミックナビゲーションシステムが日本に導入された.従来のガイデッドサージェリーと異なり,本システムによる埋入手術には技術が求められる.本研究は,ダイナミックナビゲーションシステムによるインプラント埋入手術時の埋入精度に,過去のインプラント埋入経験値が影響を及ぼすのかを検討することを目的とした.方法:対象としてインプラント埋入経験が豊富な群(n=5)と未経験群(n=20)とした.下顎デモ用模型に対してX-Guide® を使用してインプラント埋入手術を行った.埋入後,ダブルスキャン法を用いて,設定位置と実際の埋入位置(起始点,先端の位置,埋入深度,埋入角度)のずれについて検討を行った.結果:各評価項目に関してインプラント埋入経験の異なる2群間で比較を行ったが,すべての測定項目の誤差は両群間で有意差はなかった.さらに歯科医師としての経験を10年未満(n=15)と10年以上(n=10)とに区分して同様に検討を行ったが,すべての測定項目において両群間に有意差はなかった.術者の年齢別にも同様の比較検討を行ったが,4項目ともにいずれの群においても誤差の値に有意差はなかった.結論:ダイナミックナビゲーションシステムの埋入精度は,年齢,歯科医師歴,インプラント埋入経験値のいずれにも相関しなかった.よって本システムを使用する際には,インプラントの経験にかかわらず一定の訓練が必要であることが示唆された.
ISSN:0914-6695
2187-9117
DOI:10.11237/jsoi.35.119