A novel technique for measurement of dentogingival tissue by cone beam computed tomography

A novel soft tissue thickness measuring method using cone beam computed tomography

“…They suggested using lip and tongue retractors while scanning to prevent the collapse of the soft tissues of lips and cheeks on the facial gingiva, as the low resolution of density and contrast of the soft tissues prevent the visualization of buccal mucosa. Some studies indicate that using retractors or cotton rolls may apply pressure on soft tissues causing dimensional alterations . In a study by Yilmaz et al, the palatal masticatory mucosa thickness was measured using CBCT images and high contrast and resolution medical lcd displays were used to detect the soft tissue structures to make a proper measurement.…”

“…Some studies indicate that using retractors or cotton rolls may apply pressure on soft tissues causing dimensional alterations. [18][19][20][21][22]24 In a study by Yilmaz et al, 25 the palatal masticatory mucosa thickness was measured using Bland-Altman plot of the measurement methods CBCT images and high contrast and resolution medical lcd displays were used to detect the soft tissue structures to make a proper measurement. They propose that at the clinical practice the limited contrast and resolution of the CBCT may be a disadvantage to make such measurements.…”

“…On the other hand, CBCT provides high quality three‐dimensional diagnostic images of hard tissues, but it is not useful in soft tissue imaging due to the low resolution and contrast . To evaluate the soft tissue thickness in CBCT scans, radiopaque materials were placed over the soft tissue . Since an accurate measurement requires a precise contact between the radioopaque material and soft tissue surface, and it is difficult to achieve it with previously used materials such as, gutta percha and aluminum foil, the sensitivity of the measurements can be impaired.…”

Observation and determination of periodontal tissue profile using optical coherence tomography

“…For example, the thickness of gingiva was measured by piercing the probe into gingiva under anesthesia, which is an invasive method, whereas an ultrasonic device has been used to non‐invasively observe the internal structure and measure the thickness . Cone beam computed tomography (CBCT) was also employed for measuring the dimensions of periodontal structures such as gingival thickness . However, ultrasonic device and CBCT could not describe in detail the internal structure of periodontal tissues, and their rather low resolution reportedly made it difficult to measure the dimensions accurately.…”

“…13,14 Cone beam computed tomography (CBCT) was also employed for measuring the dimensions of periodontal structures such as gingival thickness. 15,16 However, ultrasonic device and CBCT could not describe in detail the internal structure of periodontal tissues, and their rather low resolution reportedly made it difficult to measure the dimensions accurately. Furthermore, CBCT carries the risk of radiation exposure.…”