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NCT Number: NCT06573463

Longevity of Prefabricated Band and Loop Versus Conventional Band and Loop Space Maintainers

To assess the longevity of prefabricated versus conventional band and loop space maintainers in children with prematurely lost first primary molars.

A Randomized Clinical Trial

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Key information

Age range

4 year–6 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

About this study

When considering gingival health and cement dissolution, does the longevity of the prefabricated band and loop differ from the conventional band and loop constructed following the premature loss of the lower first primary molars?

The concept of preserving space after premature tooth loss has been recognized for over a century. Conventional appliances are used successfully as space maintainers, but some disadvantages like the need for at least two visits to deliver the appliance due to laboratory work, will definitely affect its role during the general anesthesia.

The prefabricated space maintainer requires only one visit as it is fitted into the patient's mouth at the clinic without needing the dental lab. This provides a good impact on apprehensive children as it reduces the number of visits and chairside time. Prefabricated space maintainers could be a new alternative to the conventional fixed space maintainers used in pediatric dentistry.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients having mandibular first deciduous molar indicated for extraction due to extensive coronal caries beyond possible repair, root caries and/or failed pulp therapy.
  • Caries free, or restored mandibular second primary molars and deciduous canines on the side of the extraction maintained throughout the entire follow-up period.
  • Children are classified as cooperative or potentially cooperative according to Wright's classification of child behavior.
  • According to space analysis, available space is less than or equal to the needed space
  • 1/3 to less than 2/3 of the root of the permanent successor is formed to the prematurely lost primary molars
  • Children are mentally capable of communication.
  • Children aged 4-6 years

Exclusion criteria

  • Children with any parafunctional habits.
  • Children with previous allergies to stainless steel.
  • Permanent successors with 2/3 of its roots formed and space analysis does not indicate the fabrication of space maintainer.
  • Parental refusal of participation.

Treatment and study plan

Prefabricated band and loop

Device

Prefabricated space maintainer requires only one visit as it fits into the patient's mouth at the clinic without needing the dental lab. It comes in a kit with different band sizes.

Other names: Ready-made band and loop, Chairside band and loop

Conventional Band and loop

Device

Conventional band and loop is the most widely used space maintainer, It shows high success rate and good patient compliance, but needs more than one visit due to the laboratory work.

Primary outcomes

  1. Gingival Health

    Time frame: 3 month and 9 month

    By using gingival index of Loe and Silness ,scores gingival inflammation from 0-3

    0 = normal gingiva

    • = mild inflammation: slight change in color, slight edema, no bleeding on probing
    • = moderate inflammation: redness, edema, glazing, or bleeding on probing
    • = severe inflammation: marked redness and edema, tendency toward spontaneous bleeding
  2. Cement integrity

    Time frame: 3 month and 9 month

    Visual inspection of cement solution by using blunt periodontal explorer and mirror, Binary (Yes, No)

Secondary outcomes

  1. Space loss between the abutment teeth.

    Time frame: 0 month and 9 month

    Change in distance measured on digital cast between the mesial midpoint of the second deciduous molar and the distal midpoint of the primary canine in mm.

  2. Change in arch dimension:

    Time frame: 0 month and 9 month

    • Arch perimeter: Measured on digital cast as a sum of the incisor, canine and molar segment widths in mm.
    • Inter canine width : Measured on digital cast from cusp tip of canine on one side to cusp tip of canine on the other side in mm.
    • Intermolar width: Measured on a digital cast from central fossa of the second primary molar on one side to central fossa of the second primary molar on the other side in mm.

Study contacts

Contact information is provided by the study sponsor or research team.

Lamis A Badawi

CONTACT

[email protected]

02001221184776

Sherif B Eltaweil, Professor

CONTACT

[email protected]

02001001481711

Sponsors and collaborators

Lead sponsor

Cairo University

Other

Registry information

Official study title

Longevity of Prefabricated Band and Loop Versus Conventional Band and Loop Space Maintainers in Children With Prematurely Lost First Primary Molars

Important dates

Study start
2024
Primary completion
2025
Study completion
2025
First posted
Aug 27, 2024
Registry last updated
Aug 28, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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