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Cariology
Question | Answer |
---|---|
The first microorganism found in caries | Streptococci mutans |
Root surface demineralization presents a pH rabge of | 6.0-6.7 |
The microorganism found in the mouths of infants | Streptococci sobrinus |
It is legal for a dental hygienist to provide a diagnosis of caries to a clinical patient in all states? | False |
The stage in dental caries process in which minerals are dissolved from tooth structure by acids defines? | Demineralization |
The microorganism assocoated with root caries is | Actinomyces |
A fistula allows for drainage of an abcess | True |
Acidogenic and aciduric refers to | Acid producong and acid tolerant |
During phase I of caries formation, the first clinical evidence appears as? | White area on the tooth surface |
When the various lesion is visible and the surface feels irregular with an explorer, the phase of the carious process can be identified as? | Phase II |
It takes approximately one to two hours for the pH level to return to normal once biofilm has attatched to the tooth, and enamel surfaces arewas caries resistant than subsurfaces? | First statement is true, second is false |
Dental caries is a transmissir disease. In order for a caries to be successfully transmissible, a susceptible host must be present | True |
Enamel is less caries resistant than subsurfaces. Calcium and phosphate dissolve from the enamel during the process of demineralization | First statement false, second true |
Enamel demineralization presents a critical pH range of | 4.5-5.5 |
The microorganism which cannot initiate the caries process is | Lactobacilli |
Can a patients cultural beliefs influence or impact the results of their caries risk assessment? | Yes |
When completing a DMFT, each tooth is counted only once. A tooth that has an existing restoration and active caries would be part of the "filled" calculations because of the existing restoration. | First statement is true, second is false |
A habit, behavior, lifestyle, or condition that when present increases the probability of a disease occurring is a term often used in medical/Dental research. Which of the following best fits this definition | Risk factors |
CAMBRA represents caries management by risk assessment. A risk factor can increase the probability of the occurrence of disease and must be identified prior to the implementation of a caries management program | True |
When completing a caries risk assessment on a clinical patient, information about past dental experiences is addressed in a factor specific to the patients? | Dental history |
A DMFT is a? | Irreversible index which measures past and present caries experience |
You have been asking yoir employer to develop a caries risk assessment to be used chairside addressing all of the patients needs. Which of the following is not an objective for this assesment? | Determine patients financial situation |
The measurement of a DMFT consist of | 28 teeth |
When determining the risk factor level, you would analyze the results of the assessment, identify where the majority of your collected information is located, and then determine which level you can defend. The more data within a level will reflect pts car | True |
A decrease in frequency of sucrose consumption is associated with an increase in caries? | False |
DMF represents | Treatment needs, prosthetic needs, level of success of therapeutic program |
When a patient with no dental carries, which of the following treatment options wouldnt be recommended | Be glad the patient is caries free and just move on to the next step in the course of treatment |
The application of a caries risk assessment creates an opportunity to gather information from the patient which then can be used as a tool to develop an individualized patient education plan specific for the patient | True |
Once a patient has been determined to be a moderate to high risk patient they will always be at that risk level. Socio economic has no influence on the caries risk level of a person being assessed for life risk caries risk | False |
Caries on the proximal or interproximal surface of posterior teeth are classified as | Class II |
In caries detection, transillumination is required for | Class IV |
Smooth surface caries are found on all of the following except | Occlusal surface |
Compound caries involves | Two tooth surfaces |
Single or multiple areas of decay are referred to as | Caries |
Dental caries, although debatable, is considered an infection disease. It has been eradicated | First statement is true, second is false |
Radiographs are needed to determine class V carries? | False |
Root caries could also be classified as? | Class V |
An example of a lesion that is considered "simple" is | Occlusal |
Your 15 year old patient is a chronic soda drinker. The Dentist confirms on the cervical one third, facially of #2-4 and 12-15. Identift the clasificafion | Type V |
Which of the following classifications describes caries on the mesiobuccal cusp tip on tooth 14? | VI |
Caries on the occlusal surface of #15 describe what location classification and caries type? | Pit and fissure. Type 1 |
Radipgraphs are needed for caries detection on all of the following except? | Class I |
Document the word that reflects the definitions "science and study of dengal caries" | Cariology |
An individual can be in the high or low risk category for development of dental caries. All of the following factors are low risk except | Poor manual dexterity |
A moderate or C-2 lesion would have a negative impact on the pulp of the tooth requiring endodontic therapy? | False |
The carious lesuon that is impossible on radiographs to detect the depth of decay | Buccal |
On a radiograph caries penetrating through enamel and Dentin over halfway through the Dentin towards the pulp is? | Severe |
Caries is the most common child hood disease. Most caries occur on the occlusal surface | True |
This caries penetrate over half way through the enamel towards the DEJ and is only seen on the enamel | C-2 |
On a radiograph, caries appear? | Radiolucent (dark) |
There are four methods of caries detection. As a hygienist it is expected that you make a caries diagnosis along with your dental charting? | First statement true, second false |
An example of a C-1 carious lesion is an incipient caries found on a tooth that has never had any caries activity | True |
During caries detection the radiograph of choice is | Bite wing |
The depth of penetration of a carious lesion is deeper clinically than it appears on the radiograph. Therefore you may see the lesion clinically and not radiographically in early stages | True |
The best way to check for occlusal surface caries is with radiographs. However using a Shepards book gently checking for resistance will detect occlusal caries | First statement is false, second true |
When doing a visual inspection of a tooth for caries, drying the tooth is recommended to enhance the detection? | True |
Optimal caries detection include? | Air, light, radiographs, shepard hook explorer |
This decay appears as a flat radiucent line, is a C-1/C-2 and does not appear on the radiograph | Occlusal carries |
On a radiograph, caries that penetrates less than half way through the enamel towards the DEJ is | Incipient |
The acid etchant used for preparing a tooth for a sealant placement is usually which ingredient | Phosphoric acid |
Excessive ingestion of fluoride during tooth development results in a reversible condition known as fluorosis | False |
How do you place a sealant | From mesial to distal |
Caries has decreased over the past few years. However the location of where the greatest percentage of caries are found has changed to reflect an increase in smooth surface caries | First statement true, second false |
Auto polymerization is a cruring process in sealant placement. This method requires the use of sealant light to cure the sealant | First is true, second is false |
A photopolymerized sealant consist of? | One material which offers a long working time |
Which of the following is not true for sealant placement? | Mix sealant material well to ensure a homogenous consistency |
Which of the following is not a criterion of an ideal sealant | Be thick high viscosity material |
Sealant material is | Mechanical |
Some incipient cariouslesions may be arrested with the application of a sealant. An adult patient with contraindicated for sealant placement | First is true, second is false |
Which of the following is not an indication for sealant placement | Interproximal caries |
Complex involves how many tooth surfaces | More than 2 |
Locations for which caries are categorized | Pit and fissure, smooth surface, root |
Class I | Pits and fissures on occlusal surfaces of premolars and molars. Facial and lingual surface of molars. Lingual surface max incisors. No radiographs needed |
Class II | Proximal surfaces of posterior teeth. Radiographs needed |
Class III | Proximal surfaces of incisors and canines. Radiographs needed |
Class IV | Proximal surfaces of incisors and canines. Radiographs needed |
Class V | Gingival third of facial or lingual surfaces of any teeth no radiographs needed |
Class VI | Cusps tips of posteruor teeth. Incisal edge of anterior teeth . No radiographs needed |
Which classes do not need radiographs | Class I,V,VI |
Enamel surfaces are More caries resistant than subsurface | True |
What is required for caries to develop | |
Susceptible host, cariogenic bacteria, acid producing source, salivary factors | |
Significant 7 | S. Mutans, S. Sobrinus, S. Sangius, S. Mitis, S. Salivarius, Lactobacilli, actinomyces |
Can lactobacii initiate the caries process? | No |
Increase in sucrose is associated with an increase in caries | True |
C-1 | Incipient - penetrates less than halfway through the enamel towards DEJ |
C-2 | Moderate - penetrates over halfway through enamel towards DEJ but not reaching DEJ |
C-3 | Advanced -penetrating enamel and Dentin at or through the DEJ but less than half way through the Dentin towards the pulp |
C-4 | Severe - penetrating through enamel and Dentin over halfway through Dentin towards the pulp |
What depth is seen in enamel only | C-2 |
What depth is seen in enamel and Dentin | C-3, C-4 |
Radiolucent area under existing restoration | Recurrent |
Prevent Initation of disease, directed toward pre pathogenesis stage. OHI sealant, fluoride | Primary |
Directed towards initial stages of disease pathogens. Intervene or prevent progression and recurrence of disease. | Secondary |
Directed towards the end result of disease pathogenesis. Provide rehabilitation. RCT implants bridges | Tertiary |