Vestibular-evoked myogenic potentials before and after dental implant surgery.

OBJECTIVES: This study aims to examine the effects of dental implant surgery on vestibular-evoked myogenic potential (VEMP) responses. PATIENTS AND METHODS: Between October 2012 and October 2014, a total of 60 consecutive patients undergoing dental implant surgery at Baskent University Hospital, Department of Otorhinolaryngology were included in the study. The control group consisted of 40 healthy subjects undergoing routine clinical examination. The VEMP response was evaluated at baseline, second and seventh days. Positional tests and Dix-Hallpike testing for vertigo were performed at baseline, second and seventh days. RESULTS: Hundred-eight dental implants were placed in 60 patients. There was no significant difference in the p1 and n1 latencies in the control group at baseline, second day, and seventh day (p>0.05). However, there was a significant increase at the second day for p1 latencies in the study group, compared to the baseline and seventh day (p=0.038). There was a significant increase at the second day for n1 compared to the baseline (p=0.016) and seventh day in the study group (p=0.005). There was a significant increase at the seventh day for n1 compared to the baseline in the study group (p=0.016). CONCLUSION: The present study revealed a significant difference in the cervical VEMP response on the second postoperative day for p1 and n1 latencies compared to the baseline and seventh postoperative day in dental implantation patients. Dental implant patients should be informed of such possible temporary problems as dizziness and vestibular problems.

Effects of septoplasty on speech and voice.

OBJECTIVES: The aim of this study was subjective and objective evaluation of changes in acoustic features of voice before and after septoplasty surgery. STUDY DESIGN: Prospective. METHODS: Twenty patients scheduled for septoplasty procedure were included in the study. Before and 1 and 3 months after septoplasty surgery, acoustic analysis were performed. The recordings of /a/ vowel were used to evaluate average fundamental frequency (F0), Jitter percent, and Shimmer percent. In spectrographic analyses, F3-F4 values for the vowels /i, e, a, o, and u/, nasal formant frequencies of the consonants /m/ and /n/ in the word /mana/, and four formant frequencies (F1, F2, F3, and F4) for nasalized /a/ vowel following a nasal consonant /n/ in the word /mana/ were compared. For the perceptual evaluation, the patients were asked to read the Turkish "Dere" passage. The differences in nasal resonance and subjective evaluations were rated. RESULTS: A statistically significant change was not observed in F0 (P=0.307), Jitter (P=0.919), and Shimmer (P=0.024) values measured before and after the operation for vowel /a/. Nasal formants measured before and after the operation for nasal formant /m/ and nasal formant /n/ in the word /mana/, which contains nasal consonants, and nasalized vowel /a/, which comes after a nasal consonant, did not differ statistically significant (P=0.096 and P=0.034, respectively). Comparisons among F1, F2, F3, and F4 values did not reveal a statistically significant change for nasalized vowel /a/, which comes after a nasal consonant in the word /mana/. CONCLUSIONS: Our study shows that a complete therapeutic approach to patients affected by nasal septum deviation do not reveal significant voice abnormalities.