Dental caries of the proximal surfaces usually starts at, A. Somewhere between the ridge and the contact area B. Just gingival to contact areas C. Just about the gingival margin

Dental caries of the proximal surfaces usually starts at,
A. Somewhere between the ridge and the contact area
B. Just gingival to contact areas
C. Just about the gingival margin
by

1 Answer

Answer :

B. Just gingival to contact areas
by

Related questions

In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction

Description : In preparing a very small proximal amalgam cavity on a molar tooth what would consider, A. Extend the cavity to the gingival margin B. Extend the cavity beyond the contacts areas C. Achieve at least 2mm in dentine D. Extend cavity just beyond dento enamel junction

Last Answer : D. Extend cavity just beyond dento enamel junction

When primary molars are prepared for stainless steel crowns, should the depth for reduction of the proximal surface be similar to the depth of the buccal and lingual surfaces? A. Yes; reduction of all wall is similar for best retention B. No, proximal reduction is greater to allow the crown to pass the contact area C. No, the buccal surfaces has the greatest reduction to remove the cervical bulge D. Yes, all undercuts are uniformly removed so that the steel crown can be seated E. No, because of lateral constriction, the lingual surface needs greatest reduction

Description : When primary molars are prepared for stainless steel crowns, should the depth for reduction of the proximal surface be similar to the depth of the buccal and lingual surfaces? A. Yes; reduction ... can be seated E. No, because of lateral constriction, the lingual surface needs greatest reduction

Last Answer : B. No, proximal reduction is greater to allow the crown to pass the contact area

The principal reasons for placing a gingival interproximal wedge in conjunction with a matrix for amalgam condensation are to: 1. separate the teeth slightly 2. keep the band tight at the gingival margin 3. contribute to the interproximal contact of the restoration 4. retract the gingival tissue a. 1,2,3 b. 1,2,4 c. 2,3,4 d. 1,3,4 e. all of the above

Description : The principal reasons for placing a gingival interproximal wedge in conjunction with a matrix for amalgam condensation are to: 1. separate the teeth slightly 2. keep the band tight at the gingival margin 3. contribute to the ... b. 1,2,4 c. 2,3,4 d. 1,3,4 e. all of the above

Last Answer : e. all of the above

The cervical finish line of a full veneer crown preparation should be placed: A. Just supragingival whenever is possible B. According to the depth of gingival crevice C. Subgingival to reduce ability of recurrent caries D. At the junction of tooth and amalgam core

Description : The cervical finish line of a full veneer crown preparation should be placed: A. Just supragingival whenever is possible B. According to the depth of gingival crevice C. Subgingival to reduce ability of recurrent caries D. At the junction of tooth and amalgam core

Last Answer : A. Just supragingival whenever is possible

A crown casting with a chamfer margin fits the die; but in the mouth the casting is open approximately 0.3mm. A satisfactory fit and accurate physiological close of the gingival area of the crown can BEST be achieved by: A. Hand burnishing B. Mechanical burnishing C. Using finishing burs and points to remove the enamel margins on the tooth D. Making a new impression and remaking the crown E. Relieving the inside of the occlusal surface of the casting to allow for further

Description : A crown casting with a chamfer margin fits the die; but in the mouth the casting is open approximately 0.3mm. A satisfactory fit and accurate physiological close of the gingival area of the crown ... the crown E. Relieving the inside of the occlusal surface of the casting to allow for further

Last Answer : D. Making a new impression and remaking the crown

Marginal leakage at the proximal gingival cavosurface of a recently restored class II can be caused by: I. Insufficient condensation II. First proximal increment was too large III. Neglecting to wedge the matrix IV. Hand manipulation instead of mechanical V. Debris contamination A. I, II, III B. II, III, IV C. I, II, V D. None of the above E. All of the above

Description : Marginal leakage at the proximal gingival cavosurface of a recently restored class II can be caused by: I. Insufficient condensation II. First proximal increment was too large III. Neglecting to wedge the matrix IV. Hand ... III, IV C. I, II, V D. None of the above E. All of the above

Last Answer : C. I, II, V

When is a gingival groove LEAST required: A. When restoring with GIC for abrasion B. When restoring with GIC for root caries C. When restoring with GIC base and composite lamination D. When restoring with amalgam

Description : When is a gingival groove LEAST required: A. When restoring with GIC for abrasion B. When restoring with GIC for root caries C. When restoring with GIC base and composite lamination D. When restoring with amalgam

Last Answer : C. When restoring with GIC base and composite lamination

The MOST common place for initiation of gingivitis is: A. Interdental papillae B. The free gingival ridge C. The attached gingiva D. The marginal gingiva

Description : The MOST common place for initiation of gingivitis is: A. Interdental papillae B. The free gingival ridge C. The attached gingiva D. The marginal gingiva

Last Answer : A. Interdental papillae

Proximal caries on x-rays appears: A. Smaller than clinically seen B. Larger than clinically seen C. The same

Description : Proximal caries on x-rays appears: A. Smaller than clinically seen B. Larger than clinically seen C. The same

Last Answer : A. Smaller than clinically seen

Clinical /Proximal in some papers/ caries on radiographs are seen: M07************ A. Smaller than the real one B. Larger than the real one C. The same size

Description : Clinical /Proximal in some papers/ caries on radiographs are seen: M07************ A. Smaller than the real one B. Larger than the real one C. The same size

Last Answer : A. Smaller than the real one

The ”biologic width” is the distance between the A. Base of the gingival sulcus and the crest of alveolar bone B. Free gingival margin and the base of the gingival sulcus C. Free gingival margin and the alveolar bone D. Free gingival margin and the mucogingival junction E. Free gingival margin and the base of connective tissue attachment

Description : The biologic width is the distance between the A. Base of the gingival sulcus and the crest of alveolar bone B. Free gingival margin and the base of the gingival sulcus C. ... gingival margin and the mucogingival junction E. Free gingival margin and the base of connective tissue attachment

Last Answer : A. Base of the gingival sulcus and the crest of alveolar bone

It is desirable for major connectors of upper partial dentures to:** A. Be at least 5 mm away from the gingival margin B. Cover the anterior palate

Description : It is desirable for major connectors of upper partial dentures to:** A. Be at least 5 mm away from the gingival margin B. Cover the anterior palate

Last Answer : A. Be at least 5 mm away from the gingival margin

Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short

Description : Why do you construct a lower removable partial denture with lingual bar: A. It is used when the space between raised floor, mouth and gingival margin is minimal B. Plaque accumulation is less than with lingual plate C. Should be made thicker when short

Last Answer : B. Plaque accumulation is less than with lingual plate

In regard to marginal leakage in amalgam: A. The wider the gap the better the chance of secondary caries B. Seal the margin with fissure sealant would prevent further breakdown C. Secondary caries may develop

Description : In regard to marginal leakage in amalgam: A. The wider the gap the better the chance of secondary caries B. Seal the margin with fissure sealant would prevent further breakdown C. Secondary caries may develop

Last Answer : A. The wider the gap the better the chance of secondary caries

Which of the following statement about the defective margins of amalgam restorations is true?+M07 A. The larger the breakdown, the greater the chance of decay. IF THERE IS MARGINAL BREAKDOWN THIS DOSNT NECESSITATE THE PRESENCE OF CARIES ALONG MARGIN So the ans is Chances are increased

Description : Which of the following statement about the defective margins of amalgam restorations is true?+M07 A. The larger the breakdown, the greater the chance of decay. IF THERE IS MARGINAL BREAKDOWN THIS DOSNT NECESSITATE THE PRESENCE OF CARIES ALONG MARGIN So the ans is Chances are increased

Last Answer : A. The larger the breakdown, the greater the chance of decay.

Community water fluoridation MOST effectively achieves: a. 90. 95% reduction of caries. b. 45. 55% reduction of caries. Esta se corrects si no tuviera la ultima opcion c. Reduces pit and fissures caries more than smooth surfaces. d. Reduces smooth surfaces more than pit and fissures.

Description : Community water fluoridation MOST effectively achieves: a. 90. 95% reduction of caries. b. 45. 55% reduction of caries. Esta se corrects si no tuviera la ultima opcion c. Reduces pit and fissures caries more than smooth surfaces. d. Reduces smooth surfaces more than pit and fissures.

Last Answer : d. Reduces smooth surfaces more than pit and fissures.

Community water fluoridation MOST effectively achieves is:** A. 90-95% reduction of caries B. 45-55% reduction of caries C. Reduces pit and fissures caries more than smooth surfaces D. Reduces smooth surfaces more than pit and fissures

Description : Community water fluoridation MOST effectively achieves is:** A. 90-95% reduction of caries B. 45-55% reduction of caries C. Reduces pit and fissures caries more than smooth surfaces D. Reduces smooth surfaces more than pit and fissures

Last Answer : D. Reduces smooth surfaces more than pit and fissures

for dental caries to progress in dentine, A. the dentine must contain soluble collagen B. enamel must contain glycoproteins C. diet must contain simple carbohydrate D. diet must contain polysaccharides E. pulp must contain complement

Description : for dental caries to progress in dentine, A. the dentine must contain soluble collagen B. enamel must contain glycoproteins C. diet must contain simple carbohydrate D. diet must contain polysaccharides E. pulp must contain complement

Last Answer : C. diet must contain simple carbohydrate

What is the MOST important role of saliva in preventing dental caries: A. Buffering action

Description : What is the MOST important role of saliva in preventing dental caries: A. Buffering action

Last Answer : A. Buffering action

Dental plaque produces: A. Chelation B. Dental caries C. Acids

Description : Dental plaque produces: A. Chelation B. Dental caries C. Acids

Last Answer : C. Acids

What is the affect of office dental prophylaxis of regular six month intervals on children’s oral health? A. Reduce caries incidence by approximately 30% B. Provide a long term improvement in oral hygiene C. Provide a short term improvement in oral hygiene D. Prevent gingivitis E. Reduce the need for patient cooperation

Description : What is the affect of office dental prophylaxis of regular six month intervals on children's oral health? A. Reduce caries incidence by approximately 30% B. Provide a long term improvement in ... term improvement in oral hygiene D. Prevent gingivitis E. Reduce the need for patient cooperation

Last Answer : C. Provide a short term improvement in oral hygiene

For dental caries to progress in dentine, A. The dentine must contain soluble collagen B. Enamel must contain glycoproteins C. Diet must contain simple carbohydrate D. Diet must contain polysaccharides E. Pulp must contain complement

Description : For dental caries to progress in dentine, A. The dentine must contain soluble collagen B. Enamel must contain glycoproteins C. Diet must contain simple carbohydrate D. Diet must contain polysaccharides E. Pulp must contain complement

Last Answer : C. Diet must contain simple carbohydrate

Of all the factors that increase the resistance of teeth to dental caries, THE MOST EFFECTIVE is,** A. The general nutrition of a child during the period of tooth formation B. The intake of fluoride during the period of enamel mineralization and maturation C. Periodic topical fluoride application by dental health care following tooth eruption D. Sufficient intake of calcium and Vitamin D during the period of enamel mineralization and maturation

Description : Of all the factors that increase the resistance of teeth to dental caries, THE MOST EFFECTIVE is,** A. The general nutrition of a child during the period of tooth formation B. The ... eruption D. Sufficient intake of calcium and Vitamin D during the period of enamel mineralization and maturation

Last Answer : B. The intake of fluoride during the period of enamel mineralization and maturation

In bridge work, which of the followings terms is NOT CORRECT: A. A retainer could be a crown to which a bridge is attached to B. A connector connects a pontic to a retainer or two retainers to each other C. The saddle is the area of the edentulous ridge over which the pontic will lie and comes in contact with pontic D. A pontic is an artificial tooth as part of a bridge

Description : In bridge work, which of the followings terms is NOT CORRECT: A. A retainer could be a crown to which a bridge is attached to B. A connector connects a pontic to a retainer or two retainers to each ... lie and comes in contact with pontic D. A pontic is an artificial tooth as part of a bridge

Last Answer : C. The saddle is the area of the edentulous ridge over which the pontic will lie and comes in contact with pontic

Which is NOT usually related to gingival inflammation in children? A. Endocrine disturbance B. Viral infection C. Mouth breathing D. Spirochetal infection E. Streptococcal infection

Description : Which is NOT usually related to gingival inflammation in children? A. Endocrine disturbance B. Viral infection C. Mouth breathing D. Spirochetal infection E. Streptococcal infection

Last Answer : D. Spirochetal infection

Good oral hygiene and fluoridation is LEAST useful in preventing caries of: A. Pit and fissure B. Smooth surface C. Inaccessible areas

Description : Good oral hygiene and fluoridation is LEAST useful in preventing caries of: A. Pit and fissure B. Smooth surface C. Inaccessible areas

Last Answer : A. Pit and fissure

Function of matrix band: A. Substitute for the missing wall so adequate condensation forces can be applied B. Permit re-establishment of proper contact lines C. Restrict extrusion of amalgam and prevent formation of an “overhang” D. Provide adequate physiological contour for the proximal surface E. Provide an acceptable surface texture to the proximal surface F. All of the above

Description : Function of matrix band: A. Substitute for the missing wall so adequate condensation forces can be applied B. Permit re-establishment of proper contact lines C. Restrict extrusion of amalgam and prevent ... E. Provide an acceptable surface texture to the proximal surface F. All of the above

Last Answer : F. All of the above

18 years old female weighting 52Kg and 163cm tall. On dental examination erosion of teeth on the most of her lingual surfaces is clearly showing. Dietary history revealed a daily rate of 5000 to 7000 Kcal/day. What is the most probable diagnosis? A. Alcoholism B. Drug abuse C. Bulimia D. Excessive smoking E. Diabetic mellitus type I

Description : 18 years old female weighting 52Kg and 163cm tall. On dental examination erosion of teeth on the most of her lingual surfaces is clearly showing. Dietary history revealed a daily rate of 5000 to 7000 ... . Alcoholism B. Drug abuse C. Bulimia D. Excessive smoking E. Diabetic mellitus type I

Last Answer : C. Bulimia

In patients with exposed root surfaces: A. Ask to use low abrasive dentifrices B. It is because of dental hypersensitivity

Description : In patients with exposed root surfaces: A. Ask to use low abrasive dentifrices B. It is because of dental hypersensitivity

Last Answer : A. Ask to use low abrasive dentifrices

The advantage of using dental floss over rubber point interdentally: A. Remove plaque and debris in interproximal surfaces B. Polish C. Massage of the interdental papillae D. Aid and recognise subgingivally

Description : The advantage of using dental floss over rubber point interdentally: A. Remove plaque and debris in interproximal surfaces B. Polish C. Massage of the interdental papillae D. Aid and recognise subgingivally

Last Answer : A. Remove plaque and debris in interproximal surfaces

To obtain a desired projection of occlusal loads, the floor of the occlusal rest should, A. Be convex B. Slope from the marginal ridge towards contact?? of abutment C. Slope from contact?? of abutment towards the marginal ridge D. Be concave E. Does not slope from the marginal ridge towards contact?? of abutment F. None of the above

Description : To obtain a desired projection of occlusal loads, the floor of the occlusal rest should, A. Be convex B. Slope from the marginal ridge towards contact?? of abutment C. Slope from contact?? of ... E. Does not slope from the marginal ridge towards contact?? of abutment F. None of the above

Last Answer : B. Slope from the marginal ridge towards contact?? of abutment

What is true about partial dentures, A. They cause immediate changes in the oral plaque behaviour B. Night wearing of dentures reduces plaque accumulation C. Relieving the gingival area reduces the gingival enlargement.

Description : What is true about partial dentures, A. They cause immediate changes in the oral plaque behaviour B. Night wearing of dentures reduces plaque accumulation C. Relieving the gingival area reduces the gingival enlargement.

Last Answer : A. They cause immediate changes in the oral plaque behaviour

The gingival portion of natural teeth differs in colour from the incisal portion because the : A. Lighting angle is different B. Gingival and incisal portions have different fluorescent qualities C. Gingival area has a dentine background D. Incident light is different

Description : The gingival portion of natural teeth differs in colour from the incisal portion because the : A. Lighting angle is different B. Gingival and incisal portions have different fluorescent qualities C. Gingival area has a dentine background D. Incident light is different

Last Answer : C. Gingival area has a dentine background

In radiographs, an incipient carious lesion limited to the end of the proximal surface of a posterior tooth appears as: A. Radiopaque area B. Triangle with apex towards the tooth surface C. Larger in radiographs than actual lesion D. All of the above E. None of the above

Description : In radiographs, an incipient carious lesion limited to the end of the proximal surface of a posterior tooth appears as: A. Radiopaque area B. Triangle with apex towards the tooth surface C. Larger in radiographs than actual lesion D. All of the above E. None of the above

Last Answer : B. Triangle with apex towards the tooth surface

Which of the following would be ONE possible indication for indirect pulp capping?*** A. Where any further excavation of dentine would result in pulp exposure. B. Removal of caries has exposed the pulp C. When carious lesion has just penetrated DEJ

Description : Which of the following would be ONE possible indication for indirect pulp capping?*** A. Where any further excavation of dentine would result in pulp exposure. B. Removal of caries has exposed the pulp C. When carious lesion has just penetrated DEJ

Last Answer : A. Where any further excavation of dentine would result in pulp exposure.

Which of the following is NOT a complication of radiation to head and neck area:** A. Xerostomia B. Mucositis C. Increased caries D. Heightened taste sensation E. Increased risk of osteomyelitis

Description : Which of the following is NOT a complication of radiation to head and neck area:** A. Xerostomia B. Mucositis C. Increased caries D. Heightened taste sensation E. Increased risk of osteomyelitis

Last Answer : D. Heightened taste sensation

Which of the following is NOT a condition seen with the development of dental caries? a. A Susceptible Tooth With A Buildup Of Plaque b. Dietary Carbohydrates (Usually Sugar) c. Acidogenic Bacterial Species d. Chewing A Lot Of Gum

Description : Which of the following is NOT a condition seen with the development of dental caries? a. A Susceptible Tooth With A Buildup Of Plaque b. Dietary Carbohydrates (Usually Sugar) c. Acidogenic Bacterial Species d. Chewing A Lot Of Gum

Last Answer : d. Chewing A Lot Of Gum

Which of the following is NOT a condition seen with the development of dental caries? a. A Susceptible Tooth With A Buildup Of Plaque b. Dietary Carbohydrates (Usually Sugar) c. Acidogenic Bacterial Species d. Chewing A Lot Of Gum

Description : Which of the following is NOT a condition seen with the development of dental caries? a. A Susceptible Tooth With A Buildup Of Plaque b. Dietary Carbohydrates (Usually Sugar) c. Acidogenic Bacterial Species d. Chewing A Lot Of Gum

Last Answer : d. Chewing A Lot Of Gum

What is an important requisite for fillers in dental composite restorative resins in load bearing areas: A. Sub micro sized particles B. High coefficient of thermal expansion C. High in content (High filler)

Description : What is an important requisite for fillers in dental composite restorative resins in load bearing areas: A. Sub micro sized particles B. High coefficient of thermal expansion C. High in content (High filler)

Last Answer : C. High in content (High filler)

Which of the following is the best index to evaluate gingival health: a. Gingival index by Loe and Silness. b. Periodontal index. c. Periodontal disease index. d. OHI. S.

Description : Which of the following is the best index to evaluate gingival health: a. Gingival index by Loe and Silness. b. Periodontal index. c. Periodontal disease index. d. OHI. S.

Last Answer : a. Gingival index by Loe and Silness.

when probing for periodontal disease the tip of the probe will be, A. At the coronal end of junctional epithelium B. At the top of the gingival calculus

Description : when probing for periodontal disease the tip of the probe will be, A. At the coronal end of junctional epithelium B. At the top of the gingival calculus

Last Answer : A. At the coronal end of junctional epithelium

The removable partial denture requires relining what would be the most appropriate action, A. take a new impression by asking the patient to occlude on it B. Provide equal space (maybe it was thickness) between denture and gingival tissues. C. Make sure the framework and retainers are seated in place before taking impression

Description : The removable partial denture requires relining what would be the most appropriate action, A. take a new impression by asking the patient to occlude on it B. Provide equal space (maybe it was ... gingival tissues. C. Make sure the framework and retainers are seated in place before taking impression

Last Answer : C. Make sure the framework and retainers are seated in place before taking impression

In the construction of a full veneer gold crown, future recession of gingival tissue can be prevented or at least minimised by, A. Extension of the crown 1 mm under the gingival crevice B. Reproduction of normal tooth incline in the gingival one third of the crown C. Slight over contouring of the tooth in the gingival one fifth of the crown D. Slight under contouring of the tooth in the gingival one fifth of the crown

Description : In the construction of a full veneer gold crown, future recession of gingival tissue can be prevented or at least minimised by, A. Extension of the crown 1 mm under the gingival crevice B. ... of the crown D. Slight under contouring of the tooth in the gingival one fifth of the crown

Last Answer : B. Reproduction of normal tooth incline in the gingival one third of the crown

Child comes to your clinic with a fractured incisor 3 mm supra-gingival, how would you treat the case, A. Formocretasol pulpotomy B. Calcium hydroxide pulpotomy C. Pulpectomy D. Direct capping E. Indirect capping

Description : Child comes to your clinic with a fractured incisor 3 mm supra-gingival, how would you treat the case, A. Formocretasol pulpotomy B. Calcium hydroxide pulpotomy C. Pulpectomy D. Direct capping E. Indirect capping

Last Answer : B. Calcium hydroxide pulpotomy

If used, in which direction should pinholes be placed? a. parallel to the long axis of the tooth b.parallel to the nearest external surface c. at a 15 degree angle to the long axis of the tooth d. perpendicular to the gingival floor e. directly below and parallel to restored cusp tip

Description : If used, in which direction should pinholes be placed? a. parallel to the long axis of the tooth b.parallel to the nearest external surface c. at a 15 degree angle to the long axis of the tooth d. perpendicular to the gingival floor e. directly below and parallel to restored cusp tip

Last Answer : b.parallel to the nearest external surface

The number of damaged gingival tissues after placing rubber dam is greater if: A. The distance between holes is too big B. The distance between holes is too small C. The punctured holes are too big in size D. Not using lubricant when placing rubber dams

Description : The number of damaged gingival tissues after placing rubber dam is greater if: A. The distance between holes is too big B. The distance between holes is too small C. The punctured holes are too big in size D. Not using lubricant when placing rubber dams

Last Answer : B. The distance between holes is too small

Clinical indications of pathogenic chronic periodontitis are: A. Mobility B. Dull pain on closing C. Presence of true pocket D. Apical migration of gingival epithelium E. Presence of subgingival calculus F. C, D & E

Description : Clinical indications of pathogenic chronic periodontitis are: A. Mobility B. Dull pain on closing C. Presence of true pocket D. Apical migration of gingival epithelium E. Presence of subgingival calculus F. C, D & E

Last Answer : F. C, D & E

A very quick and wide separation of teeth causes: A. Gingival inflammation B. Vasodilation C. Wider spaces D. Necrosis of bone

Description : A very quick and wide separation of teeth causes: A. Gingival inflammation B. Vasodilation C. Wider spaces D. Necrosis of bone

Last Answer : A. Gingival inflammation

The MOST common cause of gingival enlargement is: A. Hereditary B. Drug induced C. Plaque induced D. Leukaemia

Description : The MOST common cause of gingival enlargement is: A. Hereditary B. Drug induced C. Plaque induced D. Leukaemia

Last Answer : C. Plaque induced