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EFFECT OF REMOVABLE PARTIAL DENTURES REPLACING PRIMARY MOLARS ON MASTICATION OF FOODS WITH VARIABLE TEXTURE
Author(s) -
GAMBARELI FLÁVIA RIQUETO,
SERRA MARCIA DIAZ,
GAVIÃO MARIA BEATRIZ DUARTE
Publication year - 2009
Publication title -
journal of texture studies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.593
H-Index - 54
eISSN - 1745-4603
pISSN - 0022-4901
DOI - 10.1111/j.1745-4603.2009.00179.x
Subject(s) - mastication , masticatory force , dentures , chewing gum , electromyography , dentistry , medicine , swallowing , molar , orthodontics , removable partial denture , masseter muscle , food science , physical medicine and rehabilitation , biology
This study investigated the effects of a prosthetic appliance on the chewing function, evaluating the electrical activity of masseter and temporal muscles to characterize the chewing process using an artificial test material. Moreover, the chewing behavior with foods of different textures (chewing gum, raw carrot, cheese, banana and industrialized toast) was evaluated. Twenty‐three partially edentulous children (12 girls and 11 boys, 7.10 ± 0.74 year‐old) participated. Electromyography and chewing behavior were determined before and 6 months after the appliance placement. During habitual chewing, the muscle activity values after the 6 months were higher ( P < 0.001). Electromyographic recording (EMG) values were not correlated with body variables. At the two evaluations, significant differences occurred in the number of cycles, swallowing threshold and amount of food ingested for soft and hard foods. The increase in EMG values and the improvement in chewing natural foods were able to demonstrate the influence possibility of the partial removable denture on the muscles and masticatory functions in children.PRACTICAL APPLICATIONS Masticatory muscles respond to the stimulus received. Chewing is a complex neuromuscular task, in which an extrinsic stimulus, such as food, provokes an intrinsic response involving the oral structures. Apart from the subject‐related variables, food consistency, texture and volume seem to be particularly significant in determining the characteristics of chewing in oral partial or total denture wearers to enable the outcome on the masticatory system function to be verified. In children, these considerations are important, since the oral sensorimotor pathway matures throughout childhood in concert with the continued acquisition of complex motor skills. Thus, it is expected that partial removable denture with good occlusal relations and good retention can not only restore mastication, but also help to maintain the health of the masticatory system since the motor system could be exercised properly.