Maximum bite force following unilateral implant‐supported prosthetic treatment: within‐subject comparison to opposite dentate side

Abstract

Bite force is a significant component of chewing and masticatory function. The literature lacks studies that compare bite force values of implant-supported fixed bridges to natural dentition within same subjects. The objective of the study was to assess maximum occlusal bite force (MBF) among patients with an implant-supported fixed prosthesis and compare it to their opposite dentate side and also to determine the effect of gender, age and Body Mass Index (BMI) on maximum occlusal bite force. Forty patients (20 males and 20 females, mean age = 42.7 ± 9.6 years) with an implant-supported fixed prosthetic rehabilitation on one side and dentate on the other side were recruited into this study. Participants' MBF were measured bilaterally at the first molar region using a digital hydraulic occlusal force gauge (GM10). The measurements were repeated three times (with 45 s intervals between times) for each side, and the highest value of the bite force (MBF) was recorded for each side. The mean MBF was 577.9 N at the implant-supported prosthesis side and 595.1 N at the dentate side. The average MBF was higher at the dentulous side (P < 0.05). Maximum occlusal bite force was higher in males and participants with higher weight and height. However, BMI was not significantly related to MBF values. Maximum occlusal bite force values at the dentate side were slightly (3%) but significantly higher than MBF at implant-supported prosthesis side. Males, taller patients and patients with higher weights had higher MBF values. Body mass index was not significantly related to MBF values.

Fatigue Behavior of Different CAD/CAM Materials for Monolithic, Implant‐Supported Molar Crowns

“…The use of a monolithic structure reduces the vulnerability of a cover layer, and a much less complex structure is expected . Because the average masticatory force at the molar region is 595 N, all of the tested materials present enough strength to be used in the posterior region; however, lithium disilicate exhibited the highest fracture resistance and the lowest failure probability of the materials tested in the present study.…”

“…This CAD/CAM process allows an adequate marginal gap and the absence of air bubbles inside the structure of the material, increasing the fracture resistance of prostheses manufactured from CAD/CAM blocks compared to those that are hand‐processed by a technician . However, the implants’ success depends on the reliability of the prosthetic components and crown materials to support the occlusal loading, especially in the posterior regions of the jaw, where the average masticatory force reaches 538 N in women and 651 N in men …”

Maximum Bite Force of Edentulous Patients before and after Dental Implant Rehabilitation: Long‐Term Follow‐Up and Facial Type Influence

“…In adults with natural dentition, it has been observed that the preferred chewing side is closely related to bite force . A study comparing bite force in patients with an implant‐supported fixed prosthesis and natural dentition on the opposite side found that MBF was significantly higher on the dentate side . However, despite these results, a number of factors remain insufficiently discussed in the literature.…”

Diet and Implant Complications

“…16 Common sense indicates, the more bone contact the more resistance to compression and tension to limit micromovement under occlusal load. Osseous cortex provides the most bone contact because it is very dense and without trabeculations.…”