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Anxiety, Pain, and Quality of Life in Orthodontic Treatment

Comparison of Anxiety, Pain, and Quality of Life in Individuals With Moderate Malocclusion Between Conventional Fixed Treatment and Invisalign: a Randomized Clinical Trial

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06133296
Enrollment
60
Registered
2023-11-15
Start date
2021-03-01
Completion date
2023-03-01
Last updated
2023-11-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malocclusion, Pain, Anxiety, Quality of Life

Keywords

clear aligner, Anxiety, Pain, Quality of Life

Brief summary

This study was evaluated anxiety, pain, and oral health-related quality of life in individuals treated with conventional fixed appliances (Group A) and clear aligners (Group B) for moderate malocclusion during the initial phase of orthodontic treatment

Detailed description

Clear aligner treatment is becoming increasingly popular among orthodontic treatment option. With this treatment method, which was introduced the literature at the beginning of the 20th century, approximately four million individuals in 2019 and over twelve million individuals have already been treated today. In addition, the number of commercial companies worldwide producing transparent plaque has reached twenty-seven, indicating that these figures will increase rapidly. Although there are debates about the effectiveness of the treatment, the increase in living standards and the improvement of the quality of life of individuals relative to conventional fixed orthodontic treatment have increased interest in clear aligner treatment. The World Health Organization has multidimensional definitions of the concepts of quality of life and health, and their common point is that they emphasize the importance of the psychological and social status of individuals in recent years. Quality of life is affected by dentofacial problems caused by malocclusions, as well as the psychosocial state of individuals during orthodontic treatment. Oral health-related quality of life was defined as the absence of physical and psychological problems in terms of oral health and self-confidence associated with the maxillofacial region, and the importance of self-confidence and psychosocial status that could affect quality of life was emphasized. The presence of pain and anxiety before and at the beginning of orthodontic treatment are among the factors affecting oral health-related quality of life. Pain is an emotional state frequently encountered by individuals undergoing orthodontic treatment, leading to cooperation problems and even causing them to give up treatment. In studies comparing the pain levels of individuals treated with conventional fixed orthodontic appliances and clear aligners, individuals treated with clear aligners felt less pain in the first few days, but there was no significant difference in pain levels in later periods of treatment. The importance of malocclusion type and arc length disperancy has been emphasized in studies comparing conventional fixed therapy and clear plating therapy in terms of pain and quality of life. Considering that the concepts of anxiety, pain, and quality of life are interrelated by each other, there are limited studies in which both treatment methods are evaluated in terms of these factors in a particular malocclusion. The current study aims to compare anxiety and pain values observed in the initial phase of orthodontic treatment and oral health-related quality of life among individuals with moderate malocclusion treated with conventional fixed orthodontic appliances and clear aligners. Our null hypothesis (H0) is that there is no difference in anxiety, pain, or oral health-related quality of life between individuals treated with conventional fixed orthodontic appliances and clear aligners.

Interventions

OTHERConventional fixed treatment

Roth brackets (.018; Gemini Roth System, 3M Unitek, USA) were used for the fixed orthodontic attachment

After the clear aligners came from the manufacturer (Align Technology, Santa Clara, CA), the compatibility of the guide aligner with each patient's mouth was checked for attachments

Sponsors

Yuzuncu Yil University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
17 Years to 28 Years
Healthy volunteers
Yes

Inclusion criteria

* Individuals who had not received orthodontic treatment before, * Angle class I malocclusion, * 4-6 mm arc length disperancy in both dental arches, * Permanent dentition period, * Missing or impacted teeth, * No smoker, * No alcohol drinker.

Exclusion criteria

* Individuals who underwent extraction fixed orthodontic treatment, * Radiologically observed alveolar bone loss, * Missing or impacted teeth, * systemic disease, * Using of drugs or analgesics.

Design outcomes

Primary

MeasureTime frameDescription
VAS0 hour, 2 hours, 6 hours, 1st day, 3rd day, 7th day, 14th day, 21st day.Visual Analogue Scale (VAS) was used to measure the individuals' pain levels. VAS is a scale that ranges pain severity from 0 to 10. (0= no pain, 10= severe pain)
OHIP-14Baseline, 10th day, 20th dayThe Oral Health Impact Profile-14 (OHIP-14) questionnaires were used to measure quality of life in our study. The OHIP-14 questionnaire consists of seven domains and 14 questions, including those related to functional limitation, physical pain, psychological discomfort, physical disability, psychological disability, and disability. The individuals were asked to answer each question as follows: 0: never, 1: very little, 2: sometimes, 3: quite often, and 4: often. After the results were collected separately for each of the seven subgroups, they were added together to calculate the actual results. High scores obtained on the OHIP-14 questionnaire indicate that quality of life was adversely affected.
OHRQoL-UKBaseline, 10th day, 20th dayThe Oral Health-Related Quality of Life-United Kingdom (OHRQoL-UK) questionnaires were used to measure quality of life in our study. In the OHRQoL-UK questionnaire, 16 questions were asked in four categories: symptom (two questions), physical condition (five questions), psychological condition (five questions), and social situation (four questions).Answers scored according to the Likert scale were given 1 point for very bad influence, 2 for bad influence, 3 for no effect, 4 for good effect, and 5 for very good effect. The scores ranged from 16 to 80. A high score indicates a good quality of life for oral and dental health, whereas a low score indicates a poor quality of life for oral and dental health.

Secondary

MeasureTime frameDescription
AnxietyBefore treatment, baseline, 10th day, and 20th day.The Spielberger State and Trait Anxiety Inventory (STAI) survey was applied. It includes 40 questions that measure state anxiety (STAI-S, 20) and trait anxiety (STAI-T, 20). The answer categories for the questions varied according to the nature of the problem (e.g., 1: No, 2: slightly, 3: multiple, and 4: always) in the form of a four-point scale.

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 6, 2026