Kumar Pravesh, Jain Veena, Thakar Alok, Aggarwal Vijay
Department of Maxillofacial Prosthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences (AIIMS), New Delhi, India.
J Prosthodont Res. 2013 Jul;57(3):200-5. doi: 10.1016/j.jpor.2013.02.002. Epub 2013 Jul 1.
To evaluate the effect of bulb height of hollow bulb obturator prosthesis on articulation and nasalance.
A total of 10 patients, who were to undergo maxillectomy falling under Aramany class-I and II, with normal speech and hearing pattern were selected for the study. They were provided 2 maxillary obturators, one extending full height of the defect and other with bulb height approximately up to inferior nasal concha. The patients were asked to wear each obturator for 6 weeks and the speech analysis was done to measure changes in articulation and nasalance at 6 different stages of treatment i.e. preoperative, postoperative (after complete healing), 24h and 6 weeks after providing full bulb height obturator and reduced bulb height obturator. Articulation was measured objectively for distortion, addition, substitution and omission by speech pathologist and nasalance was measured by Dr. SPEECH software.
Comparison between full and reduced bulb height for nasalance and articulation, showed that there was no statistical significant difference (P>0.05) between the two for both the parametres.
Articulation and nasality improves after providing obturator. Articulation and nasalance both are independent of bulb height.
评估中空球状物阻塞器假体的球状物高度对发音及鼻音的影响。
本研究共选取10例计划接受上颌骨切除术的患者，这些患者属于阿拉马尼I级和II级，言语及听力模式正常。为他们提供2种上颌阻塞器，一种阻塞器的高度与缺损处一致，另一种阻塞器的球状物高度约至下鼻甲。要求患者佩戴每种阻塞器6周，并在治疗的6个不同阶段（即术前、术后（完全愈合后）、佩戴全球状物高度阻塞器及降低球状物高度阻塞器后的24小时和6周）进行言语分析，以测量发音及鼻音的变化。言语病理学家客观测量发音的歪曲、增加、替代及遗漏情况，并用Dr. SPEECH软件测量鼻音。
全球状物高度与降低球状物高度的阻塞器在鼻音及发音方面的比较显示，两种参数在两者之间均无统计学显著差异（P>0.05）。
佩戴阻塞器后发音及鼻音得到改善。发音及鼻音均与球状物高度无关。
