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
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
SINGLE
Enrollment
50
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.
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.
Cairo university
Cairo, Egypt
Gingival Health
By using gingival index of Loe and Silness ,scores gingival inflammation from 0-3 0 = normal gingiva 1. = mild inflammation: slight change in color, slight edema, no bleeding on probing 2. = moderate inflammation: redness, edema, glazing, or bleeding on probing 3. = severe inflammation: marked redness and edema, tendency toward spontaneous bleeding
Time frame: 3 month and 9 month
Cement integrity
Visual inspection of cement solution by using blunt periodontal explorer and mirror, Binary (Yes, No)
Time frame: 3 month and 9 month
Space loss between the abutment teeth.
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.
Time frame: 0 month and 9 month
Change in arch dimension:
1. Arch perimeter: Measured on digital cast as a sum of the incisor, canine and molar segment widths in mm. 2. 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. 3. 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.
Time frame: 0 month and 9 month
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