3D-printed space maintainers versus conventional lingual arch spacemaintainers for kids’ jaw space

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This trial compares two approaches for maintaining space after premature loss of mandibular primary molars in children. It examines clinical effectiveness, including gum health, pain, and anxiety, using conventional spacemaintainers and a 3D-printed version. Participants are 7–9 year-olds with specific dental conditions and radiographic criteria, recruited at Suez Canal University. The study addresses potential advantages of 3D-printed retainers such as reduced chair time and fabrication steps, against existing methods. Outcomes will inform whether 3D-printed spacemaintainers can preserve arch length and prevent malocclusion.

Why it matters

Who can join: the full rules

Inclusion Criteria:

* Apparently, healthy cooperative children have recently prematurely loss of more than one mandibular primary molar in any of the quadrants, full erupted mandibular first permanent molars in both sides, and whose lower permanent incisors have erupted
* The permanent successors of the lost primary molars were not expected to erupt within 6 months
* Angle's class 1 occlusion with normal primary molar relation
* Caries-free and periodontally healthy abutment teeth
* Absence of parafunctional habits or abnormal occlusion conditions such as crossbite, open bite, or deep bite.
* Children's age ranges from 7 to 9 years-old
* Radiographically, presence of permanent successors, more than one millimeter of bone covering the successor tooth germ, and/or only about one-third of the root of the permanent tooth has been formed.
* Parents and children were accepting the new treatment modality.

Exclusion Criteria:

* children exhibited poor oral hygiene, para-functional oral habits, severe crowding, space loss, and abnormal occlusion
* Extraction of primary molars exceeding three months.
* Radiographically, absence of permanent successor.
* uncooperative children

Where it's running

• Suez Canal University
  Ismailia, Ismailia Governorate, Egypt Recruiting

Study contacts

• Study coordinator: Reham M. Assistant Professor, PhD
• Email: reham_mohamed@dent.suez.edu.eg
• Phone: +966545318171

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.