An Electromyographic Analysis of Orbicularis Oris and Buccinator Muscle Activity in Patients with Complete Dentures Fabricated Using Two Neutral Zone Techniques—A Pilot Study

Ladha, Komal; Gill, Shubhra; Gupta, Rekha; Verma, Mahesh; Gupta, Mukesh Kumar

doi:10.1111/jopr.12055

Cited by 7 publications

(3 citation statements)

References 19 publications

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“…A number of indications for precise rehabilitation of maxillary Brown II defects using a prosthesis include healthy residual teeth and an alveolar crest, available soft tissue undercut and functional buccinator . Ladha et al reported that the peri‐oral muscles, mainly the orbicularis oris and the buccinator, maintained a complex morpho‐functional system. Brown II defects do not involve peri‐oral muscles; therefore, merely, the stability and support of the prosthesis could lead to the success of a healthy wound healing.…”

Section: Discussionmentioning

confidence: 99%

Digital planning workflow for partial maxillectomy using an osteotomy template and immediate rehabilitation of maxillary Brown II defects with prosthesis

Wang

Yang

Gan

et al. 2019

J of Oral Rehabilitation

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Background There is increasing evidence of benefits for the rehabilitation of Brown II defects with prosthesis in surgery. However, the current literature is sparse for maxillary tumour resection using osteotomy templates. Objectives To assess the accuracy of maxillectomy using a custom fabricated osteotomy template and to evaluate the prosthesis for surgical accuracy, appearance and functioning (speech, swallowing and occlusal force). Methods Ten patients with Brown II defects caused by tumour resection were treated with precise partial maxillectomy using an osteotomy template. The immediate rehabilitation of the Brown II defect was completed with a prefabricated prosthesis. The post‐operative three‐dimensional images and the pre‐operative virtual images were superimposed, and average deviation and maximum deviation were calculated. Speech intelligibility, swallowing, appearance and University of Washington Quality of Life Questionnaire (UW‐QoL) were examined at 1, 3 and 6 months after surgery. Occlusal force was examined post‐operatively at 6 months. Results The maximum deviation between the actual and virtual surgery was 5.12 ± 0.44 mm, with an average of 1.02 ± 0.17 mm. Speech intelligibility, swallowing and UW‐QoL improved significantly (P < .05) after wearing the prosthesis. The recovery index of the occlusal force on the affected side was 20.19%‐32.28%. The skewed degree of the mouth corner, the difference in the height of the left and right lips, the maximum deviation distance and the change area volume decreased significantly (P < .05). Conclusion The precise rehabilitation of maxillary Brown II defects can be achieved using a prosthesis fabricated with an osteotomy template. The prosthesis restored appearance and functional capabilities (such as speech and occlusal force).

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Section: Discussionmentioning

confidence: 99%

Digital planning workflow for partial maxillectomy using an osteotomy template and immediate rehabilitation of maxillary Brown II defects with prosthesis

Wang

Yang

Gan

et al. 2019

J of Oral Rehabilitation

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“…Makzoumé [28] morphologically compared the phonetic denture space with the swallowing denture space and found that the latter was located lingually to the former. Ladha et al [29] evaluated the electromyographical (EMG) activity of the orbicularis oris and buccinator muscles in patients wearing complete dentures, which were fabricated using the swallowing and phonetic denture spaces. They reported that both muscles' activities did not differ significantly, irrespective of the technique used for complete denture fabrication.…”

Section: Comparison Of Dentures Fabricated Using Various Methodsmentioning

confidence: 99%

“…Many studies on denture spaces have been conducted [18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Karlsson et al [18] reported that differences in the flange form measurements and the distances between the impressions were small.…”

Section: Reproducibility Of the Denture Spacementioning

confidence: 99%

Effectiveness of denture space recording method in the prosthetic treatment of edentulous patients

et al. 2022

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Purpose: To present a clinical rationale for the effectiveness of denture space recording methods for the prosthetic treatment of edentulous patients through a review of the literature. Study selection: A total of 3167 studies were extracted from a search of four terms, namely denture space, neutral zone technique, flange technique, and piezography using PubMed and J-STAGE databases. A total of 57 documents that matched the inclusion and exclusion criteria were selected. Results: From the extracted articles, the clinical application of denture space recording methods was found to be effective in edentulous patients with severe ridge resorption. The relationship between the labiolingual and buccolingual pressure in patients with neuromuscular problems or with mandibular or lingual defects differs from those without it, so a stable prosthesis can be easily fabricated by locating the neutral zone using denture space recording methods. Conclusions: The literature on denture space recording methods suggests that its application on challenging cases of edentulous patients is useful in providing prostheses with improved retention and stability.

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Obturator prostheses with intramucosal retention system in patients with maxillectomy

Alves,

Vieira-Silva,

Almeida

et al. 2024

Oral Maxillofac Surg

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An Electromyographic Analysis of Orbicularis Oris and Buccinator Muscle Activity in Patients with Complete Dentures Fabricated Using Two Neutral Zone Techniques—A Pilot Study

Abstract: OO and BUC muscle activities did not significantly differ, irrespective of the technique used for fabrication of complete dentures.

Cited by 7 publications

References 19 publications

Digital planning workflow for partial maxillectomy using an osteotomy template and immediate rehabilitation of maxillary Brown II defects with prosthesis

Digital planning workflow for partial maxillectomy using an osteotomy template and immediate rehabilitation of maxillary Brown II defects with prosthesis

Effectiveness of denture space recording method in the prosthetic treatment of edentulous patients

Obturator prostheses with intramucosal retention system in patients with maxillectomy

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