Dental images are created using x-rays, a high-energy electromagnetic radiation that can permeate or be absorbed by solid objects. Dense objects, such as teeth and bones, that absorb the energy appear as light-colored areas in the image. Less dense objects, such as gums and cheeks, produce dark areas on x-ray film.
Dental imaging encompasses a wide variety of imaging modalities to aid in diagnosis and determination of the origin of infection. From: Radiologic Clinics of North America, 2018.
This is an important part of the diagnostic process, which allows your dentist to evaluate the health of your teeth, bones and soft tissues. These images are most commonly used to spot cavities, but they also can detect bone loss, root damage and hidden dental structures–such as impacted teeth.
Dental imaging meaning
Consonantal sounds represented by ⟨tʼ⟩ in IPA
The alveolar and dental ejective stops are types of consonantal sound, usually described as voiceless, that are pronounced with a glottalic egressive airstream. In the International Phonetic Alphabet, ejectives are indicated with a modifier letter apostrophe ⟨ʼ⟩, as in this article. A reversed apostrophe is sometimes used to represent light aspiration, as in Armenian linguistics ⟨p‘ t‘ k‘⟩; this usage is obsolete in the IPA. In other transcription traditions, the apostrophe represents palatalization: ⟨pʼ⟩ = IPA ⟨pʲ⟩. In some Americanist traditions, an apostrophe indicates weak ejection and an exclamation mark strong ejection: ⟨k̓, k!⟩. In the IPA, the distinction might be written ⟨kʼ, kʼʼ⟩, but it seems that no language distinguishes degrees of ejection.
Dental clicks are a family of click consonants
Click articulated at the upper teeth
Dentalclicks are a family of click consonants found, as constituents of words, only in Africa and in the Damin ritual jargon of Australia.
Consonantal sounds represented by ⟨l⟩ in IPA
The voiced alveolar lateral approximant is a type of consonantal sound used in many spoken languages. The symbol in the International Phonetic Alphabet that represents dental, alveolar, and postalveolar lateral approximants is nowrap>⟨IPA>l⟩, and the equivalent X-SAMPA symbol is monospaced>l.
The voiced alveolar lateral flap is a type of consonantal sound
Consonantal sounds represented by ⟨ɺ⟩ in IPA
The voiced alveolar lateral flap is a type of consonantal sound, used in some spoken languages. The symbol in the International Phonetic Alphabet that represents this sound is nowrap>⟨IPA>ɺ⟩, a fusion of a rotated lowercase letter nowrap>⟨r⟩ with a letter nowrap>⟨l⟩. Approved in 1928, the symbol represented a sound intermediate between and or between and until 1979 when its value was redefined as an alveolar lateral flap.
The voiced dental fricative is a consonant sound
Consonantal sound represented by ⟨ð⟩ in IPA
The voiced dental fricative is a consonant sound used in some spoken languages. It is familiar to English-speakers as the th sound in father. Its symbol in the International Phonetic Alphabet is eth, or and was taken from the Old English and Icelandic letter eth, which could stand for either a voiced or unvoiced (inter)dental non-sibilant fricative. Such fricatives are often called interdental because they are often produced with the tongue between the upper and lower teeth, and not just against the back of the upper teeth, as they are with other dental consonants.
Consonantal sound represented by ⟨θ⟩ in IPA
The voiceless dental non-sibilant fricative is a type of consonantal sound used in some spoken languages. It is familiar to English speakers as the 'th' in think. Though rather rare as a phoneme among the world's languages, it is encountered in some of the most widespread and influential ones. The symbol in the International Phonetic Alphabet that represents this sound is nowrap>⟨IPA>θ⟩, and the equivalent X-SAMPA symbol is T. The IPA symbol is the Greek letter theta, which is used for this sound in post-classical Greek, and the sound is thus often referred to as theta.
