Anatomical landmarks of mandibular interforaminal region related to dental implant placement with 3D CBCT: comparison between edentulous and dental mandibles

Abstract

The MIC and LF are associated with neurovascular bundle variations in number, location and size. Therefore, clinicians should determine each of these anatomical structures on a case-by-case basis to recognize their presence and to take measures for the possible implications of various treatment options. These guidelines included leaving a 2 mm safety zone between an implant and the coronal aspect of the neurovascular bundle. To avoid neurovascular injury during surgery in the interforaminal area, guidelines were developed with respect to validating the presence of an anterior loop of the neurovascular bundle.

Evaluating of the Mental Foramen Region Based on CBCT

“…Some scholars suggested that the implantation operation in the pre-mental area should be at least 5mm away from the front edge of the mental foramen in order to ensure the mental nerve bundle is not damaged [17], and the distance from the upper edge of the mental foramen should be no less than 2mm [18]. This study based on 100 patients with bilateral mental foramen area CBCT images were observed and measured, found that inferior alveolar nerve after to the mental foramen area on the outside direction through the formation of mental nerve, the average distance from mandibular canal upper edge to mental foramen lower edge was (3.9+0.97) mm, moreover the average distance from 1.5mm inside the upper edge of mental foramen to mental canal was (1.4+0.42) mm, according to at least 1.5mm bone plate and 2mm safety distance on the neural canal should be preserved on the buccal-lip side of implant [19], The tip of the implant on the posterior edge of the mental foramen can be placed under the upper edge of the mental foramen by 4mm, while the tip of the implant perpendicular to the upper edge of the mental foramen can be placed on the mental foramen by 0.5mm. Under the condition that the nerve is not damaged, the length of the implant is increased, improving the initial stability of the implant and the satisfaction of long-term clinical results.…”

Vascular and neurosensory evaluation in relation to lingual canal anatomy after mandibular midline implant installation in edentulous patients

“…Furthermore, the recovery rate is fast, ranging from days to 12 weeks [ 53 , 54 ]. However, keeping a safe distance of 2 mm between implants and the neurovascular bundle of the lingual foramen is still recommended to avoid these transient vascular/neurosensory complications [ 55 ].…”

Koni̇k Işinli Bi̇lgi̇sayarli Tomografi̇ İle Di̇şli̇, Di̇şsi̇z Ve Parsi̇yel Di̇şli̇ Bi̇reylerde Mandi̇bular İnsi̇zi̇v Kanalin Morfoloji̇si̇ni̇n Retrospekti̇f Olarak Değerlendi̇ri̇lmesi̇

“…21 Sener ve ark, dişli ve dişsiz kadavra örneklerinden aldıkları KIBT görüntülerinde, iki grup arasındaki MİK çapı ortalamaları arasında anlamlı istatistiksel bir fark bulamamışlardır. 41 Kabak ve ark, premolar dişler bölgesindeki kanal çapının santral kesiciler bölgesinde yarı yarıya azaldığını ve kanalın oluşturan kortikal kemiğin çok incelip damar ve sinir yapılarının trabekül kemik içine dağıldığını bildirmişlerdir . 42 Orhan ve ark.…”