Neutral zone recording in computer‐guided implant prosthesis: A new digital neuromuscular approach

Abstract

BackgroundNeutral zone (NZ) is a specific area in the oral cavity where muscular opposite forces are null. NZ represents the ideal zone for prosthesis placement. In this study, we compared digital implant planning using conventional technique and using NZ registration through piezography.MethodsSixty‐tree implants were digitally planned. Angular deviation differences between traditional planned and NZ‐planned implants were calculated. In addition, interferences with soft tissues (i.e., tongue and cheeks) were evaluated.ResultsWe observed a significant difference between traditional technique and piezographic approach in terms of implants angulation (p = .003), independent of site. A 4.7% of the planned abutments with traditional technique were placed outside the NZ, causing conflict with soft tissues in the digital model.ConclusionsCompared with traditional technique, piezography allows a significantly different exploitation of the nonconflict area, which potentially translates into better management of soft tissues and improved functionality of the implants.

Ultrashort Implants, Alternative Prosthetic Rehabilitation in Mandibular Atrophies in Fragile Subjects: A Retrospective Study

“…However, the data of a previous study showed how immediate loading can affect the survival rate of implants but not the final prothesis success, showing how the correct distribution of the occlusal forces in the period after implant insertion can positively influence the final outcome [16].…”

“…If the surgical intervention on jawbones is considered as a minor type on surgery and with a very low risk, the diagnosis and planning stages are fundamental for rehabilitation, which can be comfortable and satisfying for the patients [16].…”

“…The loss of the vertical dimension modifies the functionality of the masticatory organ, and spotting the neutral zone might be difficult [16].…”

“…The combination of innovative implant surfaces and the correct project of the prostheses, with the related implant connection, determined a different timing in the therapy, allowing to obtain an immediate loading [16][17][18].…”

Influence of Different Repair Acrylic Resin and Thermocycling on the Flexural Strength of Denture Base Resin

“…Managing the forces in oral physiology by careful consideration of teeth volume, angulation, volume, neutral zone, and residual ridge morphology is vital for long-term success of denture prosthesis. [7,8] Eklund [9] and Caplan D [10] reported a higher risk of edentulism among the community with lower levels of education and income status. The choice of dental prosthesis is influenced by multiple factors such as aesthetic expectations, cost, and patient acceptability.…”