After ensuring that individuals open their mouths as wide as possible, the distance between the incisal edges of the central incisors in the upper and lower jaws will be measured in millimeters using a ruler, and the values will be recorded.

Individuals are given liquids in volumes of 5, 10, 15, 20, 25, 30, 35, 40, and 45 mL using a graduated syringe, and they are asked to swallow the liquid. The maximum amount of liquid that can be swallowed during a single movement of the thyroid cartilage is determined. In healthy individuals, the normal dysphagia limit is more than 20 mL. If a person can normally swallow 20 mL, the dysphagia limit is considered normal.

It consists of 12 items. Each item is scored from 0 to 4, with response options of "Never (0)", "Rarely (1)", "Sometimes (2)", "Usually (3)", and "Always (4)". The total score ranges from 0 to 48. It covers three areas: mouth opening (questions 1, 3, 4, 5, 6), dry mouth (questions 2, 7, 8, 9, 10), and aesthetic concerns (questions 11, 12). Higher scores reflect greater limitations in oral functions.

Participants are asked to answer 10 questions without any time constraints. Each answer is scored as "yes = 10," "no = 0," and "sometimes = 5." Based on the total score, participants are classified as TMR-Absent (0-15), Mild-TMR (20-40), Moderate-TMR (45-65), and Severe-TMR (70-100).

It is a functional test developed specifically for scleroderma to assess an individual's hand function. It evaluates four specific hand movements (finger flexion, finger extension, finger abduction, and dorsal extension). Scores range from 0 (normal) to 3 (complete failure) for each movement, with a total score ranging from 0 to 12.

It is a patient/parent-centered measurement method that helps assess the patient's biopsychosocial aspects, such as disease activity, posture, functional and psychosocial status, fatigue, and school performance. The results from the questions are used to assess the functional status of children, while their psychosocial status is recorded based on their answers to 21 questions (ranging from 0 to 358). A high score indicates a poor psychosocial status.

It consists of 74 items covering various health domains, including physical functioning, emotional well-being, and general symptoms. The items are divided into four dimensions related to the child's quality of life: gross motor function (GMF), fine motor function (FMF), psychosocial function (PF), and systemic or general symptoms (SGS). Each domain is scored on a Likert-type scale from 1 to 7; higher scores indicate poorer health-related quality of life. There is also a "not applicable to me" option for the items. The scale also includes a pain measurement (10 cm Visual Analog Scale (VAS)) to assess pain, but this score is not included in the total score.

It assesses the functional abilities of children diagnosed with rheumatic diseases in their daily living activities. It consists of eight subscales (dressing and personal care, standing up, eating, walking, body care, reaching, grasping, activities) (0-3) and also assesses pain and general well-being using a visual analog scale (0-100). A high score indicates low functionality.

JAB-Q is a multidimensional questionnaire and a parent (family) form. Developed in Turkish by Ünal and colleagues, the questionnaire is completed by one of the child's parents. The family form evaluates the parents' biopsychosocial status from their own perspective and provides scores ranging from 0 to 102. Higher scores indicate a worse biopsychosocial status.

It is assessed using a 5-point Likert scale ranging from 0 (never) to 4 (always) and consists of 13 items. Similar to the child questionnaire, it assesses 3 domains: rumination, magnification, and helplessness. A total score between 0 and 52 is obtained; higher scores reflect a higher level of catastrophizing in parents.

It is a 20-question survey that evaluates the community participation of children and adolescents in school, neighborhood, and local settings. The survey is divided into four sections: 6 questions about home participation, four questions on neighborhood and community involvement, five questions regarding school participation, and five questions on home and community engagement. It is rated on a scale of "expected for their age (full participation), somewhat limited, very limited, unable to participate, and inapplicable." The survey is completed by the child's family or primary caregiver. The person filling out the questionnaire is asked to select the answer that best describes the child's level of participation. The assessment is scored out of 100 points, with higher scores reflecting a greater level of participation.

It was standardized as a biopsychosocial assessment tool and is scored using a 5-point Likert scale, with each item rated from 0 to 4 points. A high total score on the 30-item scale indicates a high level of biopsychosocial impact.

It will be used to determine an individual's quality of life levels. Each sub-parameter is scored between 0 and 100 points, with a high score indicating good health status. The SF-36 scale has eight sub-parameters: general health perception, physical function, social function, pain, mental health, role difficulty due to physical reasons, role difficulty due to emotional reasons, and vitality. It contains 11 questions consisting of a total of 36 items.

It was developed by adding five questions to the HAQ regarding Raynaud's phenomenon, digital ulcers, gastrointestinal, pulmonary, and general scleroderma symptoms, to be rated on a 15 cm line. The SHAQ total score ranges from 0 to 3. A high score indicates low functionality.

It is a 40-item scale, scored on a 0-4 Likert scale, that assesses symptoms related to central sensitization. A score above 40 is interpreted as an indicator of central sensitization.

It consists of fourteen questions, with odd-numbered questions assessing anxiety and even-numbered questions assessing depression. The options are scored from 0 to 3, with higher scores indicating a worse emotional state. The Turkish cut-off values for the scale are 10 for the anxiety subscale and 7 for the depression subscale.