A: The user must add the ruler with a scale of at least 0.5 millimeter resolution or better to facilitate the normalization by adding the relative distance. Moreover, the upper and lower dental model must be in the middle area of the photograph to ensure proper analysis, or it will create complications during the orthodontic movement simulation of individual teeth while the background of the dental model image must be a single color including black to ease the segmentation process.

A: The types of dental model analysis to be applied in CephSmile consist of:

1. Dental Arch Parameters
2. Dental Space Analysis
3. Bolton Analysis

A: The Anterior Dental Width, Posterior Dental Width, and the Anterior Dental Depth are used to check whether the dental curves are at the proper form.

A: Dental Space Analysis can show whether the jaw has enough space for the teeth by comparing the sum of dental widths from individual teeth (the required dental space) with the segmented dental curve lengths (the available dental space) applied on the ten anterior teeth that can be readjusted by the arch wires. When the available dental space is less than the required dental space, dentists can correct this problem by filing or extracting teeth to make more space available.

A: Bolton Ratio Analysis is the way to check the relationship between the sum of maxillary teeth widths and the sum of mandibular teeth widths to calculate the ideal sum of maxillary teeth from the actual sum of mandibular teeth with and the ideal sum of mandibular teeth from the actual sum of maxillary teeth widths.

A: Three sections are required including:

1. Right Buffer Zone from the right canine to the second right premolar
2. Sum of Incisor – four incisal teeth
3. Left Buffer Zone from the left canine to the second left premolar

A: CephSmile can apply three types including:

1. All. 12, the ratio between sum of the madibular teeth and the sum of maxillary teeth from the first right molar to the first left molar.
2. Anterior 6, the ratio between sum of the madibular teeth and the sum of maxillary teeth from the right canine to the left canine.
3. Posterior 6, the ratio between sum of the madibular teeth and the sum of maxillary teeth from the first right molar to the first left premolar and from the first left molar to the first left premolar.

A: The first step is to segment the individual teeth and then move the individual teeth to the targeted position by moving or rotating until all the segmented teeth have their individual destination and the orthodontic movement simulation can be executed until clicking the Stop radiobutton to end the movement.

A: The user must follow the guidelines or dental arch parameter measurement step-by-step for success.

A: The user must follow the measurement step-by-step from the second right molar to the second left molar and from the maxillary teeth to the mandibular teeth.

A: Yes, it can be saved and reopened.

A: Unfortunately, not at present due to the lack of research data from Thai people to perform the dental model analyses on the cases of mixed dentition as well as the cases of primary dentition.