On each radiograph the mandibular ridge height (upto inferior boundary of mental foramen
a1) was taken by measuring the distance from the lower border of the mandible to the inferior edge of the mental foramen
Among various anatomical landmarks in the human skull, the mental foramen
is regarded as a stable landmark on the mandible.
a) Lateral alveolar root to mental foramen
(A): From the mental foramen
to the lateral extent of the alveolar root of lower incisor.
In some patients, another foramen is present which is termed as accessory mental foramen
(AMF) or nutritional canals or buccal mandibular foramen4,5.
The IAN was exposed and traced along its entire length from the ramus to the mental foramen
(figure 4) after sagittal split and separation of the facial and lingual cortices of the mandible.
We can identify the mental nerve emerging from the mental foramen
based on the accompanying vessel.
The panoramic radiograph revealed a well-defined unilocular radiolucency with corticated rim, which extended from right to left mental foramens
. Because of the lesion, the roots of the left lateral mandibular incisor and canine were deviated and resorbed (Figures 1 and 2(c)).
Panoramic curve was determined by indicating the center of the MC, from mandibular foramen to mental foramen
on both sides, to derive maximum buccolingual size of MC on ideal panoramic view.
CT guided depth control ensures the precise placement of dental implants for immediate restoration such as in full arch edentulous prosthesis such as "All on 4" types of cases (58), and the avoidance of injury to the mandibular nerves, mental foramen
, and maxillary sinuses.
Keywords: Mental foramen
, variations of mandible, accessory mental foramen
Various measurements exhibited good sensibility for males using MS: maximum mandibular length (78.12), bicondylar breadth (78.12), left mandibular notch breadth (84.37), and the left height of the mandibular body at the mental foramen
The mandibular canal and mental foramen
presented inferior-superior enlargement, bilaterally (Figure 1).