ch 15

A clean, healthy tooth will have little or no fluorescence when a laser caries detector is used, resulting in ______ readings.

• very low

• moderately low

• moderately high

• very high

Demineralization occurs when calcium and phosphate dissolve from ___________ in the enamel.

• calcium

• hydroxyapatite

• sodium

• potassium

Incipient caries is the ______ stage of development of a carious lesion.

• first

• second

• frank

• overt

The _______ protection of saliva is dependent on the water content in the saliva and the amount or flow of saliva.

• physical

• chemical

• antibacterial

• buffering

What does the "M" in CAMBRA stand for?

• Management

• Marketing

• Malocclusion

• Manipulation

Which of the following is not true regarding the demineralization of tooth structure?

• Demineralization is caused by the bacterial acid released after eating a fermentable carbohydrate.

• Demineralization is increased as fermentable carbohydrates are eaten more frequently.

• Demineralization is repaired by cooked starch, such as bread, potatoes, rice, and pasta.

• Demineralization is increased as the teeth are exposed to fermentable carbohydrates more frequently.

Which of the following types of caries occurs primarily on occlusal surfaces?

• Smooth surface

• Pit and fissure

• Recurrent

• Root surface

The three factors required for the development of caries are a susceptible tooth, specific bacteria, and

• fermentable carbohydrates.

• any bacteria.

• fats.

• acidic food.

What is the primary reason why root caries is becoming more prevalent?

• There is a greater consumption of fermentable carbohydrates.

• People are keeping their teeth longer.

• There are better diagnostic methods.

• Fluoridated water creates more acid oral conditions.

Which of the following are examples of caries risk assessment tests?

• Production of stomach acid and GERD

• Saliva flow rate and bacterial testing

• Saliva pH and buffering capacity

• Maternal DNA