Evaluation of Lingual Concavity in the Posterior Mandible in Dental Implant Surgery: A Retrospective Cone-Beam Computed Tomography Study

Year 2024, Volume: 10 Issue: 1, 36 - 43, 29.04.2024

Resül Çolak Burak Arda Önder

https://doi.org/10.21306/dishekimligi.1400359

Abstract

ABSTRACT
Aim: The aim of this study is to evaluate the prevalence of lingual concavity in edentulous areas in the posterior mandible and its occurrence according to the crest. In addition, it is aimed to determine the distance of the existing concavity from the crest and to separate the partitions of possible implant applications.
Material and Methods: 747 cross-sectional CBCT images of 150 patients, 78 men and 72 women, who met the inclusion criteria in the archives of Bülent Ecevit University Faculty of Dentistry, were examined. The presence of concavity in the premolar and molar regions was evaluated. The regions with concavity were examined and compared with each other by examining the more detailed features of the concavity and the crest types (P, C and U).
Results: The incidence of lingual concavity and U-type ridge is most observed in the 2nd molar region (49.5%). While the presence of concavity is less common in premolar teeth than molar teeth, in cases where concavity is present, the depth of concavity observed in premolar teeth is greater than molar teeth.
Conclusion: The results of this study reiterate the importance of evaluating the area where the implant will be applied with CBCT before the operation. The risk of perforation that may occur during or after implantation in the lower jaw is reduced to lower levels with 3D planning made via CBCT before the operation. The use of CBCT before surgery prevents nerve damage, etc., other than lingual perforation. It is also an important practice to prevent most complications that may occur before and after implant surgery.

Keywords

Concavity, dental implant, lingual perforation.

Dental İmplant Uygulamalarında Posterior Mandibulada Lingual Konkavite Varlığının İncelenmesi:Retrospektif Konik Işınlı Bilgisayarlı Tomografi Çalışması

Abstract

ÖZ
Amaç: Bu çalışmanın amacı posterior mandibulada dişsiz sahaların lingual konkavite varlığının yaygınlığının ve kret tepesine göre pozisyonunun değerlendirilmesidir. Ayrıca mevcut konkavitenin kret tepesi ile olan mesafesinin belirlenmesinin olası implant uygulamalarında oluşabilecek komplikasyonlarının önlenmesi amaçlanmaktadır.
Gereç ve Yöntemler: Bülent Ecevit Üniversitesi Diş Hekimliği Fakültesi arşivindeki dahil edilme kriterlerine uygun olan 78’i erkek 72’si kadın olmak üzere 150 hastanın 747 kesitsel KIBT görüntüsü incelendi. Premolar ve molar bölgedeki konkavite varlığı değerlendirildi. Konkavite görülen bölgeler ise konkavitenin daha detaylı özellikleri ve kret tipleri (P, C ve U) incelenerek birbirleri ile karşılaştırıldı.
Bulgular: Lingual konkavite ve U tipi kret görülme sıklığı en çok 2.molar bölgede (% 49.5) gözlemlenmektedir. Konkavite varlığı premolar dişlerde molar dişlere göre daha az görülürken, konkavitenin bulunduğu durumlarda premolar dişlerde gözlemlenen konkavite derinliği molar dişlerden daha fazladır.
Sonuç: Bu çalışmanın sonuçları implant uygulaması yapılacak bölgenin operasyon öncesinde KIBT ile değerlendirilmesinin önemini tekrar ortaya koymuştur. Alt çenede implantasyon sırasında veya sonrasında oluşabilecek perforasyon riski operasyon öncesi KIBT üzerinden yapılan 3 boyutlu planlamalar ile daha düşük seviyelere çekilmektedir. Cerrahi öncesi KIBT kullanımı lingual perforasyon dışında sinir hasarı vb. implant cerrahisi öncesi ve sonrasında oluşabilecek çoğu komplikasyonun önlenmesi için de önemli bir uygulamadır.

Keywords

konkavite, dental implant, lingual perforasyon

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