The crystalline substances localized in different areas of salivary calculi were identified by using microradiographic and X-ray microdiffractometric techniques. All 19 calculi analyzed had a general pattern of apatite which was recognizable both in the center and at varying distances from the core. In addition to apatite patterns, six of the calculi gave a diffraction pattern of whitlockite, which in all but one case was located in the central part of the calculi. The influence of various factors on the distribution of the crystalline substances of apatite and whitlockite within the calculi is discussed.
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- The study investigated the effectiveness of ultrasound and CT scans for diagnosing salivary gland stones in 188 patients, with a focus on submandibular and parotid glands.
- It found that CT scans identified some stones missed by ultrasound, and certain techniques in ultrasound can improve accuracy.
- The research suggests avoiding CT for patients with dental work due to radiation concerns and recommends targeted ultrasound as a safer alternative.
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