Individual variation in the occlusal pattern of the molariform teeth is slight.
Eozapus to the subfamily Sicistinae on the basis of similarity in the occlusal pattern of the cheek-teeth of Eozapus and various sicistines.
Occlusal views of upper and lower right cheek-teeth, of the three Recent genera of the subfamily Zapodinae.
Note especially the variation in complexity of occlusal pattern, width of re-entrant folds, and degree of tubercularity.
In the molars of modern geomyines, the enamel loop is not continuous but is interrupted on the sides of the crown by vertical tracts of dentine that are exposed at the occlusal surface of the tooth during early stages of wear.
All of the enamel bands are interrupted by tracts of dentine, except in the initial stages of wear of the occlusal surface of the newly erupted tooth.
With continued effacement of the occlusal surface, the fossette will be eradicated, and the pattern of the occlusal surface will become the partially biprismatic pattern of the final stages (adult) of wear (see Fig.
The relatively close but previously unrecognized relationship between Dikkomys and Pliosaccomys can be understood when patterns of wear on the occlusal surfaces of the cheek teeth are taken into account.
D), the enamel fossette disappears as a result of continued attrition on the occlusal surface in the upper series.
If this advanced stage of effacement is obtained, then the two columns would be united across the entire surface of their protomeres from the center of the crown to its labial edge, and the occlusal pattern would be in the shape of a U.
This is evident on the worn occlusal surface of the teeth; the lateral re-entrant folds are shallow vertically and progressively recede laterally until only a slight inflection remains.
B Anterior margin of mesopterygoid fossa even with plane of posterior wall of M3; postorbital bar weakly developed; anteroposterior occlusal length of M3 equal to, or less than, combined length of M1 and M2.
B) is continuous on the occlusal surface of a worn molar.
Longitudinal, dorsal profile of skull relatively straight but frontal region elevated from rostrum and lambdoidal region elevated from posterior part of parietal region; posterior margin of P4 (in occlusal view) notched.
Progression of wear soon eliminates the signs of the shallowest counterfolds from the occlusal surface and finally the tooth is reduced to a short crown with a cuplike occlusal surface completely filled with dentine.
The counterfolds, which are smaller counterparts of the main fold, in most instances also implicate the wall of the tooth opposite to that marked by the main fold, but are to be seen mostly on only the occlusal face of the tooth.
The main fold involves both the occlusal face of the tooth and the side wall.
For example, it is common to see one continuous groove giving the impression of a main fold crossing the occlusal surface transversely.
Occlusal views of the upper left and lower right molariform teeth of the two subgenera of the genus Proechimys.
In this case, it would be easy to confuse the two types of teeth, one with the main fold short and the other with the main fold extending almost all the way across the occlusal surface.
The slightest wear of the occlusal surface, however, shows that really there are two valleys instead of one.
Advanced wear usually develops a cuplike occlusal surface with only the remains of the main fold and also remains of one or more counterfolds represented by small enamel islands (Figs.
As soon as the third molars show wear, the premolars and first molars have the counterfolds isolated in the occlusal surfaces as enamel islands.
Trinomys has the main fold in the molars always greatly developed and the fold tends to set apart one lamina in the occlusal surface.
On the occlusal surfaces of the cheek-teeth, the enamel surrounding the dentine is incomplete on both the lingual and labial sides of the teeth of five individuals and is incomplete on the labial side of some of the teeth of a sixth specimen.
The following measurements are of specimens in which the occlusal face of each molar tooth is worn flat.
Ridges and crests extremely well developed; occlusal pattern of molariform teeth obliterated or nearly so; P3 noticeably worn; 2 to 4 years or older.
In both juveniles and young the P4 and p4 are deciduous and differ in occlusal pattern from the permanent P4 and p4.
In the deciduous P4 the anterior cingulum is projected strongly anteriorly forming the apex of the sharpest angle of a triangle, whereas the permanent P4 is trapezoidal in occlusal pattern.
Lateral view of right lower mandible and m2 × 1 and oblique occlusal view of m2 × 2.
Lateral view of holotype × 1, and occlusal view of check-teeth × 2.
It may be employed in any cavity not exposed to view, also in crown, buccal, and approximal fillings which extend into the occlusal surface, as it offers an astonishing resistance to wear.
Fill from one-fourth to one-half of the cavity with tin, and complete the remainder with gold when the tooth is of good structure; this gives all the advantages of gold for an occlusal surface.
Fillings on occlusal surfaces can be faced with No.
In some mouths also, at this period, the fluids are in such a condition that oxychlorid and oxyphosphate do not last long; for some reason amalgam soon fails, while gutta-percha is quickly worn out on an occlusal surface.
Tg is useful in partly erupted molars, buccal cavities under the gums, occlusal cavities in temporary teeth, cavities where all decay cannot be removed.
If proximal cavities are opened from the occlusal surface, the last portion of the filling should be of cohesive gold to withstand mastication.
Anteriorly the cusp is confluent with an anterior cingulum that is small, but, nevertheless, plainly visible as it crosses the occlusal face of the tooth to the paracone.
M3 shows a great amount of wear, and theocclusal pattern is not too clear.
Note A: This and the following measurements atocclusal surface.
Among at least American kinds of Myotis, argentatus is extreme in small area of occlusal surface of the upper molariform teeth in relation to the total area of the palatal surface of the skull.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "occlusal" in a variety of sentences. We hope that you will now be able to make sentences using this word.
