;~

56.

57.

58.

59.

60.

61.

In a normal dentition in the- intercuspalposition, the mesiolingual cusp of thepermanent maxillary first molar opposesthe mandibular first molar in the

62.

1.2.3.

cen tral fossa.distal fossa.mesi al fossa.

Viewedocclusally, the lingual portion of thecrown outline is generally greater than thefacial portion of the crown outline for thepermanent 63.

1.2.3.4.

maxillary first molar..mandibular first molar.maxillary second molar.mandibular second molar.

The glenoid fossa is an oval cavity or adepression in the

1-

2.

maxilla, just anterior to the malarprocess.temporal bone, just anterior to theauditory canal.mandible, just posterior to theinternalobliqueridge.-

64.

3.

When in its proper position relative to theplane of occlusion, the crown of themandibular second molar inclines

1.2.3.4.

distally and facially.mesially and facially.mesially and lingually.distally and lingually.

When two proximal surfaces diverge froman area of contact, an embrasure is formed

65.

1-2.3.4.

lingually only.lingually and facially only.lingually and occ/usally only.Iinguall YI facially, oee!usalJy andcervically.

As the teeth are closed into the intercuspalposition, the final movement of the mandibleis directed by the

66.

1.2.3.4.

5.

height of the free way space.strength of the muscles of mastication.cusp-fossa relationship of opposing teeth.ligaments that extend from the skull tothe mandible.shape of the articular eminence of thetemporomandibular joint.

At the same time as the suprahyoid musclescontract during swallowing, a downwarddisplacement of the mandible is preventedby con trac tion of the

1-2.3.4.5.

infrahyoidmuscles. .

masticatory muscles.anterior cervical muscles.posterior cervical muscles.muscles of facial expression.

The primary teeth that present the mostoutstanding morphologic deviations frompermanent teeth are the

1-2.3.4.5.

central incisors.lateral incisors.canines.first molars.second molars.

In an ideal centric occlusion, the mesiofaciaJcusp of the permanent maxillary first molaropposes the

1.

2.

central fossa of the mandibular firstmolar.mesial fossa of the mandibular firstmolar.facial embrasure between mandibularsecond premolar and first molar.sulcus of the distofacial groove ofthe mandibular first molar.sulcus of the mesiofacial groove ofthe mandibular first molar.

3.

4.

5.

Lingual cusps of mandibular molars oppose

1.2..3.4.5.

grooves only.marginal ridges only.grooves and embrasures only.marginal ridges and embrasures only.grooves, embrasures and marginal ridges.

The free gingivamay be described as

1.2.3.

4.

filling the interproximal area.forming the wall of the gingivalsulcus.marking the opening of the gingivalsulcus.being attached to the cementum and thealveolar bone.extending from the free marginal grooveto the alveolar mucosa.

5.