Comparison of two screws for maxillary expansion in prepubertal children

Conditions

Maxillary arch constriction Oral Health

Marino Merlo M, Quiroga Souki B, Nieri M, Bonanno A, Giuntini V, McNamara JA, Franchi L.

2024-01-034 citations

Comparison of the dento-skeletal effects produced by Leaf expander versus rapid maxillary expander in prepubertal patients: a two-center randomized controlled trial

Valeria Paoloni, Veronica Giuntini, Roberta Lione, Michele Nieri, Valeria Barone et al. (10 authors)

European Journal of Orthodontics2021-05-1236 citations

10.1093/ejo/cjab035

Comparison between two screws for maxillary expansion: a multicenter randomized controlled trial on patient’s reported outcome measures

Michele Nieri, Valeria Paoloni, Roberta Lione, Valeria Barone, Matilde Marino Merlo et al. (8 authors)

European Journal of Orthodontics2020-10-0116 citations

10.1093/ejo/cjaa063

Interventions

Patients will be randomized to receive a screw for maxillary expansion that uses moderate and continuous forces (Memoria Leaf Spring Activated Expander A2704, Leone SpA) (test) or a standard expansion

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Children in prepubertal stage (age between 6 and 14 years) 2. Negative posterior transverse discrepancy of at least 3 mm eligible for maxillary expansion 2. The first molars should be erupted with a mixed dentition stage in early transitional period or inter-transitional period

Exclusion criteria

Exclusion criteria: 1. Age older than 14 years or younger than 6 years 2. Deciduous dentition or mixed dentition in the late transitional period or permanent dentition 3. Maturation stage of cervical vertebrae CS3 or greater 4. Agenesis of maxillary second premolars 5. Periodontal disease 6. Neurologic or systemic disease 7. Allergy to nickel 8. Cleft lip and/or palate 9. Patients irradiated in the neck-head area 10. Chemo- or immune-therapy in the previous 5 years

Design outcomes

Primary

Measure	Time frame
1. Maxillary intermolar width, measured at baseline and at one-year follow-up 2. Pain, measured using a visual analogue scale (VAS) for the first 12 weeks (a total of 12 questionnaires)	—

Secondary

Measure	Time frame
1. Difficulties in speaking, measured using VAS every week for the first 12 weeks (a total of 12 questionnaires) 2. Difficulties in keeping the expander clean, measured using VAS every week for the first 12 weeks (a total of 12 questionnaires) 3. Treatment satisfaction of both the patients and the patients' parents, evaluated at one-year follow up 4. Complications, recorded during the 1-year follow up period 5. Variables either on dental casts or postero-anterior cephalograms, measured at baseline and at one-year follow up	—

Measure

Time frame

1. Difficulties in speaking, measured using VAS every week for the first 12 weeks (a total of 12 questionnaires) 2. Difficulties in keeping the expander clean, measured using VAS every week for the first 12 weeks (a total of 12 questionnaires) 3. Treatment satisfaction of both the patients and the patients' parents, evaluated at one-year follow up 4. Complications, recorded during the 1-year follow up period 5. Variables either on dental casts or postero-anterior cephalograms, measured at baseline and at one-year follow up

—

Countries

Italy

Contacts

Public ContactLorenzo Franchi

lorenzo.franchi@unifi.it+39 (0)55 7945602

Outcome results

None listed