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2 results

  • Endoscopic triple-C tympanoplasty: an alternative approach to anteriorly located tympanic membrane repair

  • H Demirhan, Ö Yiğit, B Hamit, M Çakır
  • Journal:
    The Journal of Laryngology & Otology / Volume 132 / Issue 11 / November 2018
    Published online by Cambridge University Press:
    31 October 2018, pp. 1007-1009
    Print publication:
    November 2018
  • Objective

    Anteriorly located tympanic membrane perforations can negatively affect surgical success rates. This study aimed to present, using our case series results, endoscopic triple-C (composite chondroperichondrial clip) tympanoplasty as an alternative method in the repair of tympanic membrane anterior quadrant perforations.

    Methods

    This study included patients with a perforation sized greater than 3 mm, who had an anterior quadrant dominant perforation where the anterior portion could not be seen during microscopic examination; all underwent endoscopic triple-C tympanoplasty.

    Results

    Operating time was 30–79 minutes (mean, 46.6 minutes). The post-operative graft success rate at six months was 92 per cent (23 out of 25). Mean post-operative follow-up duration was 21.5 ± 7.3 months (range, 11–40 months), and no intratympanic cholesteatoma was observed.

    Conclusion

    Endoscopic triple-C tympanoplasty is a comfortable, minimally invasive alternative method to repair anterior tympanic membrane perforations. The graft success rate and the degree of recovery from hearing loss were in accordance with the literature. However, more reliable results may be obtained in a larger series with longer follow-up times.

  • Technology assessment in dentistry: A comparison of the longevity and cost-effectiveness of inlays

  • Afschin Gandjour, Thomas Kerschbaum, Andreas Reis, Karl Wilhelm Lauterbach
  • Journal:
    International Journal of Technology Assessment in Health Care / Volume 21 / Issue 3 / July 2005
    Published online by Cambridge University Press:
    04 August 2005, pp. 319-325

  • Objectives: An example of technology assessment in dental care by evaluating the (cost-)effectiveness of types of three-surface inlays (gold, laboratory-fabricated ceramic, and chairside CAD/CAM ceramic) is provided.

    Methods: MEDLINE, EMBASE, and the Cochrane Library were searched for studies published between 1966 and June 2003 that reported annual survival probabilities and annual observations. The longevity of different types of inlays was measured by the number of failure-free years. Annual survival rates from different studies were pooled by weighing the rates of each study by the inverse of the variance of the effect estimate. A cost-effectiveness analysis from the perspective of German private health insurers was performed using billing charges.

    Results: Three, five, and two case series on laboratory-fabricated ceramic, chairside CAD/CAM ceramic, and gold inlays, respectively, were included. Over a 9-year observation period, the number of undiscounted failure-free years was 8.62 (95 percent confidence interval, 8.40–8.85), 8.65 (8.58–8.73), and 8.76 (8.72–8.80) for laboratory-fabricated ceramic, chairside CAD/CAM ceramic, and gold inlays, respectively. Laboratory-fabricated ceramic inlays were the most expensive.

    Conclusions: While laboratory-fabricated ceramic, chairside CAD/CAM ceramic, and gold inlays had a strikingly similar failure-free survival rate, laboratory-fabricated ceramic inlays had the highest costs and, thus, were less cost-effective than chairside CAD/CAM ceramic and gold inlays.