ABSTRACT
BACKGROUND: Primary headaches (PH) are a group of disorders greatly impairing quality of life, highly prevalent in growing population. Previous studies suggested a rhinogenic involvement in PH episodes. Modifications of nasal cavities and septum take place during rapid maxillary expansion (RME). This study aims to investigate the role of skeletal modifications due to RME on PH episodes. METHODS: Sixty-eight growing patients (30/38 MF 7-12 y.o 9.2 ± 1.3 SD) were enrolled. All the selected sample patients reported at least 12 PH episodes in the previous year and were diagnosed with maxillary constriction to be treated with RME. Changes in PH episodes before and after this orthodontic procedure were analysed using paired t-tests. Correlations between age and PH episodes were assessed using Spearman correlation coefficients. Correlations between cephalometric changes and PH episodes were investigated using paired t-tests. CONCLUSION: RME produces significant modifications in maxillary and nasal width and lower nasal length and decreased monthly episodes of PH significantly. It can be supposed and inferred that RME has beneficial effects on PH in growing patients.
ABSTRACT
AIM: The integrity of primary dentition is essential in the development of the jaws and permanent occlusion. The consequences of a premature loss of primary molars are: space loss, crowding, risk of impaction of the permanent teeth, ectopic eruption, anomalous inclination of the teeth adjacent to the loss molar, reduction of arch length. The mesial displacement of the posterior permanent teeth during eruption can cause a loss of space, which can be regained with orthodontic appliances. Therefore, a careful diagnosis is of great importance to be able to decide what appliance is indicated to recover from this situation. Molar distalisation consists in displacing permanent molars distally, allowing them to reach class I relationship and to recover the correct space for the second bicuspids when the second deciduous molar has been lost early. METHODS: The aim of this study is to carry out a narrative literature review regarding the different appliances and their effectiveness in regaining space after premature loss of the upper primary molars. CONCLUSION: The paediatric dentist should be aware of the advantages and disadvantages related to each device and select the most appropriate distalisation appliance based on an individual plan of diagnosis and a careful treatment. The distalisation of the upper molar must be adequately stabilised and so it is important to consider also some retainers such as Nance's appliance, the Palatal Plate, the extraoral traction, the utility arch, or II Class elastic bands.
