The neutral zone revisited: From historical concepts to modern application

Cagna, David R.; Massad, Joseph J.; Schiesser, Frank J.

doi:10.1016/s0022-3913(09)60087-1

Cited by 57 publications

(50 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Os movimentos mais utilizados para o registro da zona neutra são os de deglutição e fonéti-cos 20,25,26 . Entretanto, outros como o sorriso 27 , franzir os lábios 14 , sucção 28 também foram descritos como formas de desenvolvimento da técnica.…”

Section: Discussionunclassified

Hipertonicidade muscular e confecção de próteses totais pela técnica da zona neutra: relato de caso clínico

Wilde

Marín

Nogueira

2015

Rev. da Fac. de Odontologia, UPF

View full text Add to dashboard Cite

IntroduçãoO tratamento com prótese total convencional tem sido, por muito tempo, o tratamento de escolha para reabilitar pacientes desdentados totais, entretanto, diversas são as queixas relatadas por seus usuários. As maiores dificuldades de adaptação e de uso estão associadas principalmente às próteses totais mandibulares 1 , sendo as mais comuns a falta de retenção e de estabilidade 2,3 , fatores esses diferenciais entre o sucesso e o fracasso nesse tipo de tratamento 4 . Uma alternativa de tratamento para esse tipo de paciente é a técnica da zona neutra, a qual determina uma área específica para o posicionamento dos dentes artificiais e da base da prótese, onde as forças geradas pela língua são neutralizadas pelas forças geradas pelos lábios e pelas bochechas 5-7 e, assim, a atividade muscular não desloca a prótese, aumentando as taxas de sucesso do tratamento 8 . A confecção de próteses totais, pela técnica da zona neutra, pode ser indicada em diferentes situações, tais como em casos de rebordos reabsorvidos

show abstract

Section: Discussionunclassified

Hipertonicidade muscular e confecção de próteses totais pela técnica da zona neutra: relato de caso clínico

Wilde

Marín

Nogueira

2015

Rev. da Fac. de Odontologia, UPF

View full text Add to dashboard Cite

show abstract

“…1,6 Especially for those patients with reduced vertical dimension, the swallowing procedure during neutral zone registration will exert compressive interference at a reduced vertical dimension. In our experience, the overjet of upper rim/denture tends to house more recording material and thicken the buccal side of the neutral zone, especially when the overjet is more obvious.…”

Section: Figurementioning

confidence: 99%

“…The aim of the neutral zone technique is to construct a denture in muscle balance through physiologically optimal denture contours and physiologically appropriate denture tooth arrangement. 6 The neutral zone is defined as "the potential space between the lips and cheeks on one side, and the tongue on the other; that area or position where the forces between the tongue and cheeks or lips are equal", 7 "where the forces of the tongue pressing outward are neutralized by forces of the cheeks and lips pressing inward". 1 It was first described by Wilfred Fish who reported the influence of the polished surfaces on retention and stability of complete dentures in 1931.…”

Section: Introductionmentioning

confidence: 99%

“…5 Besides patients with a severely atrophic ridge, the neutral zone technique for complete denture or removable partial denture (RPD) reconstruction can also be suggested for patients of advancing age and/or long-term edentulism with decreasing facial muscle tonicity, anatomic deformity or insufficiency due to postcancer oral surgical resections, or those suffering stroke or Parkinson's disease, leading to either atypical movement or an unfavorable denture bearing area. 5,6 The neutral zone approach to complete denture construction is by no means new but is a valuable one. Unfortunately, it is not a widely practiced procedure while the proportion of patients that may benefit from this technique is significant.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Neutral zone approach to denture fabrication for a severe mandibular ridge resorption patient: Systematic review and modern technique

Yeh

Pan

Chen

2013

Journal of Dental Sciences

View full text Add to dashboard Cite

Conventional complete denture therapy for patients with severe residual ridge resorption is challenging. The dental implant therapy may be a treatment option for improving the denture support, retention, and stability. However, the neutral zone technique is also considered to be an important alternative approach to patients complaining of unstable dentures, particularly when implant therapy is not feasible. This technique is by no means new, but is not widely practiced due to lack of experience of dentists. The aim of this article is to describe historical perspectives on the neutral zone concept. In addition, a modified modern neutral zone technique is presented to reconstruct a lower complete denture for a patient with severe ridge resorption. The new definitive complete denture successfully improves stability, comfort, and function for the patient with severe mandibular ridge resorption.

show abstract

“…This physiologically based denture design concept has been shown to be effective for mandibular removable prostheses particularly patients affected by anatomic deformity or insufficiency through facilitating the development of vertical denture polished surfaces against which effective facial seal can be achieved and maintained [6].…”

Section: Introductionmentioning

confidence: 99%

Effect of implant assisted partial overdenture with neutral zone concept in partially resected mandible restoration on facial contour and bone density

Mohamed

Amin

Sadakah

et al. 2014

Tanta Dental Journal

View full text Add to dashboard Cite

This study was performed to evaluate the effect of implant assisted partial overdenture located in neutral zone for restoring partially resected mandible on facial contour and bone density. Material and methods: 10 patients their age range from 18 to 45 years were selected. Each patient had partially resected mandible with osseous bone graft. Patients received removable partial overdenture assisted by two implants with suitable length and diameter guided by CBCT scan using early loading protocol two months after implant insertion. That partial overdenture respected neutral zone registration. Patients were recalled after two months from transitional partial denture insertion, two months after implant insertion and two months after implant assisting removable partial overdenture for facial symmetry evaluation, and assessment of bone quality. The data were collected, tabulated and statistically analyzed using test (ANOVA) with repeated measures comparing different follow up periods for bone density, and paired t-test comparing facial symmetry before reconstruction versus after reconstruction and mirror images to healthy side. Results: Currently it was found that early loading protocol with two implants supported mandibular partial overdenture with neutral zone in reconstructed resected mandible produce implant success rates, and improve facial asymmetry.

show abstract

The neutral zone revisited: From historical concepts to modern application

Cited by 57 publications

References 33 publications

Hipertonicidade muscular e confecção de próteses totais pela técnica da zona neutra: relato de caso clínico

Hipertonicidade muscular e confecção de próteses totais pela técnica da zona neutra: relato de caso clínico

Neutral zone approach to denture fabrication for a severe mandibular ridge resorption patient: Systematic review and modern technique

Effect of implant assisted partial overdenture with neutral zone concept in partially resected mandible restoration on facial contour and bone density

Contact Info

Product

Resources

About