Metal Reinforcement of a Complete Maxillary Denture Without a Palate: A Preliminary Report

Takahashi, Toyomi; Mizuno, Y.; Gonda, Tomoya; Maeda, Yoshinobu

doi:10.11607/ijp.4045

Cited by 4 publications

(14 citation statements)

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“…11,12,15,16,25 This is supported by biomaterials research indicating that reinforcement of maxillary complete dentures may reduce the risk of fracture and deformation. 58 Bearing in mind that a high-impact acrylic resin without any cast metal framework reinforcement was used in the present study, the number of overdenture fractures was remarkably low. The frequent puncture fractures were attributed to restricted interalveolar space with strict participant selection criteria for minimal to moderate maxillary residual ridge resorption.…”

Section: Discussionmentioning

confidence: 72%

Maxillary Three-Implant Overdentures Opposing Mandibular Two-Implant Overdentures: 10-Year Prosthodontic Outcomes

Ma¹,

Waddell²,

Atieh³

et al. 2016

Int J Prosthodont

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Section: Discussionmentioning

confidence: 72%

Maxillary Three-Implant Overdentures Opposing Mandibular Two-Implant Overdentures: 10-Year Prosthodontic Outcomes

Ma¹,

Waddell²,

Atieh³

et al. 2016

Int J Prosthodont

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“…Regarding the types of prostheses, four reports examined overdentures including implant overdentures , eight reports examined maxillary complete dentures , and four reports examined mandibular complete dentures . The two other reports examined telescope dentures and removable partial dentures .…”

Section: Resultsmentioning

confidence: 99%

“…The included articles consisted of one clinical report (6), three case reports (7-9) and 36 in vitro reports. Within the included in vitro articles, 24 reports examined standardised specimens (10-33), 11 reports examined prosthesis-shaped specimens (12,15,(34)(35)(36)(37)(38)(39)(40)(41)(42) like complete and partial removable dentures, two reports examined both standardised and prosthesis-shaped specimens (12,15), and three reports used a finite element method (5,43,44). (46), most of them were placed in category III and a few were in IV GRADE.…”

Section: Auto-polymerised Resin Strainmentioning

confidence: 99%

“…Therefore, all of them were placed in category D recommendation level that is based on Shekelle's system. Regarding the types of prostheses, four reports examined overdentures including implant overdentures (5,8,9,34), eight reports examined maxillary complete dentures (6,(36)(37)(38)(39)(40)(41)44), and four reports examined mandibular complete dentures (7,15,35,42). The two other reports examined telescope dentures (43) and removable partial dentures (12).…”

Section: Auto-polymerised Resin Strainmentioning

confidence: 99%

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Reinforcement in removable prosthodontics: a literature review

Takahashi

Gonda

Mizuno

et al. 2017

J of Oral Rehabilitation

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Removable prosthodontics are often associated with mechanical troubles in daily use, such as fracture or deformation. These troubles render prostheses unusable and reduce wearers' QOL. Various reinforcements are used to prevent such problems, but consensus on reinforcement has not been reached. This review aimed to summarise the effects of reinforcement and to propose favourable reinforcement based on material, design and position in the prostheses. Initially, 139 articles were selected by electronic and manual searches. After exclusion of 99 articles based on the exclusion criteria, 40 articles were finally included in the review. Electronic searches were performed for articles published from 2005 to 2015 in PubMed, EMBASE, MEDLINE and Cochrane Library, and manual searches were performed in 10 journals relevant to the topic of removable prosthodontics. For in vitro studies, certain dental alloys and fibres were mainly used. Their forms were different, including complicated forms in dental alloys and various forms in fibres. The materials were examined for mechanical properties like fracture strength, flexural strength and elastic modulus and compared with one another or without reinforcement. There were a few clinical studies and one longitudinal study. Cast metal reinforcement seemed to be most favourable in terms of fracture toughness and stiffness. The most favourable forms differed depending on the prostheses, but placement around thin and deformable areas was effective. However, randomised or longitudinal clinical reports and comparative clinical studies on the use of reinforcement were still lacking and such studies are necessary in the future.

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“…Palateless dentures are said to be more advantageous than dentures with palate in terms of pronunciation, 14 masticatory performance, 14 gustation, 15 temperature, sensorimotor function, 16 and gagging reflex. 17 However, they also provide less retention and rigidity or strength than dentures with palate, 9,18 and this may cause problems with the underlying structure. Past reports of IODs suggest that retention can be increased to a satisfactory level by using attachments, but the problem of the absence of rigidity or strength has not been resolved.…”

Section: Discussionmentioning

confidence: 99%

Influence of Palatal Coverage and Implant Distribution on Denture Strain in Maxillary Implant Overdentures

Takahashi¹,

Gonda²,

Mizuno³

et al. 2016

Int J Oral Maxillofac Implants

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As maxillary implant overdentures are being increasingly used in clinical practice, prosthodontic complications related to these dentures are also reported more often. The purpose of this study was to examine the influence of palatal coverage and implant distribution on the shear strain of maxillary implant overdentures. Materials and Methods: A maxillary edentulous model with implants inserted in the anterior, premolar, and molar areas was fabricated. Two kinds of experimental overdentures, with and without palatal coverage, were also fabricated, and two strain gauges were attached at the midline of the labial and palatal sides. A vertical occlusal load of 98 N was applied through a mandibular complete denture, and the shear strain in each denture was compared by analysis of variance (P = .05). Results: In all situations, the shear strain in palateless dentures was significantly higher than in dentures with palate on both sides (P < .05). In dentures with palate, the shear strain was lower when anterior implants were present. Conclusion: Palateless maxillary implant overdentures exhibited much higher strain than overdentures with palate regardless of the implant distribution; this may cause more prosthodontic and implant complications. The most favorable configuration to prevent complications in maxillary implant overdentures was palatal coverage that was supported by more than four widely distributed implants.

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Metal Reinforcement of a Complete Maxillary Denture Without a Palate: A Preliminary Report

Cited by 4 publications

References 0 publications

Maxillary Three-Implant Overdentures Opposing Mandibular Two-Implant Overdentures: 10-Year Prosthodontic Outcomes

Maxillary Three-Implant Overdentures Opposing Mandibular Two-Implant Overdentures: 10-Year Prosthodontic Outcomes

Reinforcement in removable prosthodontics: a literature review

Influence of Palatal Coverage and Implant Distribution on Denture Strain in Maxillary Implant Overdentures

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