Related Experiment Video
Updated: Jul 24, 2026

07:57
Accuracy in Dental Medicine, A New Way to Measure Trueness and Precision
Published on: April 29, 2014
13.9K
Perceptions of Young Patients During Digital and Conventional Impression-Taking: A Comparative Semi-experimental
Loubna Benkirane1, Hakima Aghoutan2, Nouhaila Alaoui1
1Pediatric Dentistry, Faculty of Dental Medicine, Hassan II University of Casablanca, Casablanca, MAR.
Cureus
|November 5, 2025
Summary
Digital dental impressions are preferred by children aged 6-14 for being quicker and more comfortable than traditional methods. This study highlights their potential, despite challenges like cost, for pediatric dentistry.
Area of Science:
- Pediatric Dentistry
- Dental Technology
- Clinical Research
Background:
- Optical impressions offer advancements in dentistry but are underutilized in children under 10 due to specific challenges.
- Evaluating patient experience with dental impression techniques in pediatric populations is crucial for adoption.
- Understanding comfort, cooperation, and time efficiency is key for implementing new dental technologies.
Purpose of the Study:
- To compare patient comfort, cooperation, preferences, and time required for conventional versus digital dental impressions in children.
- To assess the feasibility and acceptance of digital impression technology in a pediatric dental setting.
- To identify factors influencing children's choices between traditional and digital dental impressions.
Main Methods:
- A randomized crossover study involving 40 children and adolescents (aged 6-14) at a dental center in Casablanca.
- Participants underwent both conventional alginate and digital impressions in a random order, separated by a seven-day interval.
- Data analysis utilized descriptive statistics and various inferential tests to compare outcomes and explore associations.
Main Results:
- Digital impressions were preferred by 62.5% of children, who reported them as quicker and more comfortable.
- Conventional impressions led to discomfort and gag reflexes in 22.5% of children and were perceived as tiring by 60%.
- 62.5% of children indicated a preference for digital impressions for future dental procedures.
Conclusions:
- Digital intraoral scanners are perceived as superior to conventional alginate impressions in terms of comfort and speed for pediatric patients (aged 6-14).
- While digital impressions show promise for younger patients, barriers such as cost and technical challenges need addressing.
- Effective preparation of children remains essential for successful dental impression procedures, regardless of the technique used.
Related Concept Videos
Group Design
The most basic experimental design involves two groups: the experimental group and the control group. The two groups are designed to be the same except for one difference— experimental manipulation. The experimental group gets the experimental manipulation—that is, the treatment or variable being tested—and the control group does not. Since experimental manipulation is the only difference between the experimental and control groups, we can be sure that any differences between the two are due to...
Blind Procedures
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which child was...
Data Collection by Experiments
Data collection is a systematic method of obtaining, observing, measuring, and analyzing accurate information. An experimental study is a standard method of data collection that involves the manipulation of the samples by applying some form of treatment prior to data collection. It refers to manipulating one variable to determine its changes on another variable. The sample subjected to treatment is known as “experimental units.”
An example of the experimental method is a public clinical trial...
An example of the experimental method is a public clinical trial...
Randomized Experiments
The randomization process involves assigning study participants randomly to experimental or control groups based on their probability of being equally assigned. Randomization is meant to eliminate selection bias and balance known and unknown confounding factors so that the control group is similar to the treatment group as much as possible. A computer program and a random number generator can be used to assign participants to groups in a way that minimizes bias.
Simple randomization
Simple...
Simple randomization
Simple...
Blinding
Blinding is a commonly used method of not telling participants which treatment a subject is receiving. Blinding is a critical part of a randomized control trial or RCT. It reduces the bias that affects the results. In an RCT, blinding is used in the form of a placebo. A placebo effect occurs when untreated subjects falsely believe they have received the treatment and report improved symptoms. A placebo or a dummy treatment is administered to subjects to negate the bias caused by such an effect.

