Effect of Attachment Resileincy on Muscle Activity in Implant Retained Mandibular Overdenture

Abstract

Objectives: This study aimed to investigate masticatory muscle activity in patients treated with 2 modalities of implant mandibular overdenture prosthesis.Methodology: Fourteen completely edentulous male patients were selected and four implants were inserted for each patient. After 3 months of installation, the patients were equally divided into two groups; group I receiving overdentures retained with ball attachments and group II receiving telescopic retained overdentures. Muscle activity was measured at time of denture insertion, two weeks and one month after insertion. Results:The results revealed that muscle activity was significantly lower in telescopic retained overdentures compared to overdentures retained with ball attachments. Conclusion:Telescopic attachments decreased the effort exerted by the muscles compared to ball and socket attachments.KEY WORDS: muscular activity, implants, overdenture, telescopic attachments.(3544) Nada el khourzaty, et al.

A Correlative Analysis of Occlusal Schemes on Chewing Efficiency, Muscles Kinetics, And Patient’s Satisfaction In Complete Dentures Wearers: A Cross-Over Study

“…This result agrees with another study which has shown that altering occlusal balance significantly reduces the EMG values when compared with group function or canine guided occlusion. 15 However, the EMG values of Nada et al who used also the SCT units were lower than our research, this can be attributed to their study in which implant supported over-dentures was under examination so better retention and stability in the prosthesis than complete denture in our case. 16 Within each group, when the two outcomes, chewing efficiency and Muscle kinetics, were correlated, in reverse to the hypotheses there was a correlation between the chewing efficiency and muscle kinetics in both groups.…”

“…EMG is a method of several methods in recording chewing cycles. 14,15 The same procedure was done for the medium and hard units Fig. 1.…”

Evaluation of Marginal Bone Height Changes in implant-supported mandibular overdenture retained with Two Different Materials of Bar Attachments.

“…This finding may be due to many reasons; the gradual rise in the maximum bite force may be due to the neuromuscular co-ordination and adaptability of the patient to the prostheses upon time; however it was reported that implant supported prostheses may restore the oral function successfully, both subjective and objective indicators of chewing ability score better compared to conventional complete dentures; more over the refined stability and retention provided by the implants may have lowered patient's fear and promoted them to exert higher biting force. (37)(38)(39)(40) Longitudinal study compared the maximum biting forces and the level of activity of the muscles of mastication two months after mandibular implants placement for denture stabilization. This study reported marked rise in bite force value from 41% to 58% bilaterally in molar area after the implants supporting.…”