Speech intelligibility with the buccal flange obturator

Oral, Koray; Aramany, Mohamed A.; McWilliams, Betty Jane

doi:10.1016/0022-3913(79)90017-9

Cited by 21 publications

(9 citation statements)

References 19 publications

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“…Different types of definitive obturators used to close the defect are solid bulb obturator, hollow bulb obturator, and sectional obturator for people with reduced mouth opening.Authorities have claimed that hollow bulb obturator is better and helps in rehabilitation with its reduced weight[11] and increased retention. [12] This study was designed to evaluate the effect of definitive hollow bulb obturator prosthesis on various speech parameters assessed before and after maxillectomy.…”

Section: Introductionmentioning

confidence: 99%

Speech rehabilitation of maxillectomy patients with hollow bulb obturator

Kumar

Jain

Thakar

2012

Indian J Palliat Care

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Aim:To evaluate the effect of hollow bulb obturator prosthesis on articulation and nasalance in maxillectomy patients.Materials and Methods:A total of 10 patients, who were to undergo maxillectomy, falling under Aramany classes I and II, with normal speech and hearing pattern were selected for the study. They were provided with definitive maxillary obturators after complete healing of the defect. The patients were asked to wear the obturator for six weeks and speech analysis was done to measure changes in articulation and nasalance at four different stages of treatment, namely, preoperative, postoperative (after complete healing, that is, 3-4 months after surgery), after 24 hours, and after six weeks of providing the obturators. Articulation was measured objectively for distortion, addition, substitution, and omission by a speech pathologist, and nasalance was measured by Dr. Speech software.Results:The statistical comparison of preoperative and six weeks post rehabilitation levels showed insignificance in articulation and nasalance. Comparison of post surgery complete healing with six weeks after rehabilitation showed significant differences in both nasalance and articulation.Conclusion:Providing an obturator improves the speech closer to presurgical levels of articulation and there is improvement in nasality also.

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Section: Introductionmentioning

confidence: 99%

Speech rehabilitation of maxillectomy patients with hollow bulb obturator

Kumar

Jain

Thakar

2012

Indian J Palliat Care

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“…However, it is considered that satisfactory retention and stability of obturator during function are provided when the bulb wall is as high as possible beyond the scar band (5, 6). In addition, it is suggested that the size and bulb type, the buccal flange type or the hollow type, affects voice quality (9, 10).…”

Section: Discussionmentioning

confidence: 99%

“…Aramany and Drane (9) indicated that the use of small nasal extension sections in hollow obturators in patients with large palatal defects tends to improve voice quality, but with smaller defects, the size of the nasal extension section has little effect on voice quality. Oral et al (10) reported that buccal flange obturators showed statistically significant superiority to hollow obturators as the preferred condition only in the live and tape‐recorded evaluation of speech.…”

Section: Introductionmentioning

confidence: 99%

The vibratory characteristics of obturators with different bulb height and form designs

Oki

Iida

Mukohyama

et al. 2006

J of Oral Rehabilitation

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The aim of the present study was to investigate whether the vibratory characteristics of obturator prostheses are affected by bulb design, i.e.: the hollow or buccal flange type, and different lateral and medial bulb heights. Buccal flange and hollow bulb obturator prostheses were fabricated with two different lateral bulb wall heights and two different medial bulb wall heights. Ultimately, eight obturator prostheses were prepared for evaluation of their vibratory characteristics. The frequency-response functions were recorded on an FFT analyzer to identify their vibratory characteristics. A transient response simulation was carried out in which an impact was applied to the non-defect side. The decay rate, damping time and maximum amplitude of the retainers were statistically analysed by anova with Scheffé's test (P < 0.05). The decay rate of every buccal flange type was higher and damping time was shorter than those of every hollow type, except between a pair with low lateral and low medial bulb walls. The maximum amplitude values of four obturators with low medial bulb walls were significantly lower than those of four obturators with high medial walls. The buccal flange obturator prosthesis with high lateral and low medial walls showed the maximum decay rate and the minimum amplitude of the retainers on molars. Vibration analysis suggests that a buccal flange obturator prosthesis with high lateral and low medial walls is preferable.

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“…9,10 On the other hand, as the bulb size diminishes capability of sealing becomes a problem adversely affecting the speech performance. [11][12][13][14][15][16][17][18][19][20] To date, the relationship between the height of buccal extension and word processing was not investigated. The purpose of this study was to compare obturator prostheses with low, medium or high extensions with respect to their effect on speech intelligibility.…”

Section: Introductionmentioning

confidence: 99%

Articulation Performance of Patients Wearing Obturators with Different Buccal Extension Designs

et al. 2009

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ObjectivesThe primary goal of prosthetic obturation is closure of the maxillectomy defect and separation of the oral cavity from the sinonasal cavities by use of different bulb designs. The aim of this study was to evaluate the articulation performance of obturator patients with three different buccal extension designs.MethodsFive patients with palatal defects of comparable sizes at ages ranging from 42 to 74 were evaluated. Starting at postoperative 4 months, speech intelligibility (SI) was assessed without a prosthetic obturator and with an obturator of buccal extensions 15 mm (high), 10 mm (medium) and 5 mm (low), respectively. Assessments were performed at four week intervals for adaptation. The articulation performance of patients with different buccal extension designs were evaluated on speech intelligibility. The data tested using Friedman test.ResultsThe mean SI score without an obturator was 45.04%±5.86%. SI was found to be significantly increased with obturators of any buccal extensions with the mean values 90.50%, %94.24% and 91.20% for high, medium, and low buccal extensions respectively. When the SI score was compared between three buccal extension types medium was found to be significantly higher compared to others (P<.05).ConclusionsObturators improve speech intelligibility irrespective of their buccal extension levels. Nevertheless, medium size buccal extension enables the optimum sealing for better articulation.

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Speech intelligibility with the buccal flange obturator

Cited by 21 publications

References 19 publications

Speech rehabilitation of maxillectomy patients with hollow bulb obturator

Speech rehabilitation of maxillectomy patients with hollow bulb obturator

The vibratory characteristics of obturators with different bulb height and form designs

Articulation Performance of Patients Wearing Obturators with Different Buccal Extension Designs

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