trigone


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Related to trigone: Hypoglossal trigone, Vagal trigone

trigone

 [tri´gōn]
2. the first three cusps of an upper molar tooth. adj., adj trigo´nal.
trigone of bladder a triangular region of the wall of the urinary bladder, an area in which the muscle fibers are closely adherent to the mucosa; its three angles correspond with the orifices of the ureters and urethra. Called also vesical trigone.
carotid trigone the triangular area bounded by the posterior belly of the digastric muscle, the sternocleidomastoid muscle, and the anterior midline of the neck. Called also superior carotid triangle.
olfactory trigone the triangular area of gray matter between the roots of the olfactory tract.
vesical trigone trigone of bladder.

tri·gone

(trī'gōn), [TA]
1. Synonym(s): trigonum
2. The first three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.
[L. trigonum, fr. G. trigōnon, triangle]

tri·gone

(trī'gōn) [TA]
1. Synonym(s): trigonum.
2. The first three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.
[L. trigonum, fr. G. trigōnon, triangle]

tri·gone

(trī'gōn) [TA]
First three dominant cusps (protocone, paracone, and metacone), taken collectively, of an upper molar tooth.
[L. trigonum, fr. G. trigōnon, triangle]
References in periodicals archive ?
Caption: FIGURE 5: Preservation of both ureters and trigone (arrow) after debridement of the necrotic tissue.
The impingement of the neurovascular bundle in the retromolar trigone from dental removable prosthesis in the elderly due to the resorption of alveolar bone may result in patient discomfort (Langlais et al., 1985).
Transection of the corona radiata is performed while opening the lateral ventricle from the frontal horn to the trigone. All tissue entering the callosum from the medial wall is transected, in order to perform a transventricular parasagittal callosotomy (21,59).
Le trigone, etant bien vascularise, se trouve donc toujours epargne, quelle que soit l'etendue de la necrose vesicale.
However, limited mouth opening was observed in cases where defects of retromolar trigone were repaired.
Finally in our long-term analysis tumors which were located in the bladder neck/ trigone showed worse progression and TSS rate.
Other common locations included the trigone, lateral wall, and urethra.
Age/ Diagnosis Previous Indications for gender stoma surgery 44/M Rectal No Infiltration of carcinoma bladder trigone stage IIIB and prostate.
One such anatomical variation which draws special attention in clinical dental practice is the RMF in the retromolar trigone (RMT).
The most common site of the lesion was the buccal mucosa 23 (41%), followed by tongue 13 (23.2%), lower alveolus 7 (12.5%), retro-molar trigone 5 (8.95%), upper alveolus 5 (8.95%), and floor of the mouth 3 (5.3%).
Because of this, fistulas stemming from benign gynecologic surgical activity tend to occur above the trigone near the vaginal cuff.