Publications by authors named "Rocio Marco Pitarch"

4 Publications

  • Page 1 of 1

Peri-Implant Behavior of Tissue Level Dental Implants with a Convergent Neck.

Int J Environ Res Public Health 2021 05 14;18(10). Epub 2021 May 14.

Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain.

Introduction: The aim of this retrospective study was to analyze the radiographic peri-implant bone loss of bone level implants and tissue level implants with a convergent neck in screw-retained single crowns and in screw-retained fixed partial prostheses, after two years of functional loading.

Materials And Methods: The sample was divided into two groups according to their type: Group I: supracrestal implants with convergent transmucosal neck; Group II: crestal implants. In each group we distinguish two subgroups according to the type of prosthetic restoration: single crowns and a three-piece fixed partial prosthesis on two implants. To quantify bone loss, parallelized periapical radiographs were analyzed at the time of implant placement and after two years of functional load.

Results: A total of 120 implants were placed in 53 patients. After statistical analysis it was observed that for each type of implant bone loss was 0.97 ± 0.91 mm for bone level and 0.31 ± 0.48 mm for tissue level. No significant differences were found regarding the type of prosthesis and the location (maxilla or mandible) of the implants.

Conclusions: Tissue level implants with a convergent transepithelial neck exhibit less peri-implant bone loss than bone level implants regardless of the type of prosthesis.
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May 2021

Dimensional analysis of the upper airway in obstructive sleep apnoea syndrome patients treated with mandibular advancement device: A bi- and three-dimensional evaluation.

J Oral Rehabil 2021 Aug 18;48(8):927-936. Epub 2021 Jun 18.

Department of Stomatology, Medical School of Medicine and Dentistry, University of Valencia, Valencia, Spain.

Background: The efficiency of the mandibular advancement device (MAD) in patients with obstructive sleep apnoea syndrome (OSAS) has been demonstrated. Nevertheless, the behaviour of the upper airway once MAD is placed and titrated, and its correlation with the apnoea-hypopnoea index (AHI) is still under discussion.

Objectives: To analyse the morphological changes of the upper airway through a bi- and three-dimensional study and correlate it with the polysomnographic variable, AHI.

Methods: Patients were recruited from two different hospitals for the treatment of OSAS with a custom-made MAD. A cone-beam computer tomography and a polysomnography were performed at baseline and once the MAD was titrated.

Results: A total of 41 patients completed the study. Treatment with MAD reduced the AHI from 22.5 ± 16.8 to 9.2 ± 11.6 (p ≤ .05). There was a significant increase of the total airway volume with MAD from 21.83 ± 7.05 cm to 24.19 ± 8.19 cm , at the expense of the oropharynx. Moreover, the correlation between the improvement of the AHI and the augmentation of the volume of the upper airway was not statistically significant.

Conclusions: The oral device used in this prospective study increased the mean upper pharyngeal airway volume and significantly reduced the AHI. Future studies that measure the muscular tone are needed to completely understand the association between the AHI and the physiological and anatomical response of the upper airway.
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August 2021

Effectiveness of a mandibular advancement device in obstructive sleep apnea patients: a prospective clinical trial.

Eur Arch Otorhinolaryngol 2018 Jul 20;275(7):1903-1911. Epub 2018 Apr 20.

Section of Prosthodontics and Occlusion, Stomatology Department, Faculty of Medicine and Dentistry, Universidad de Valencia, Calle Gasco Oliag 1, CP 46010, Valencia, Spain.

Purpose: This study aimed to determine the effectiveness of a mandibular advancement device in a sample of obstructive sleep apnea syndrome patients by the evaluation of respiratory and neurophysiologic parameters and clinical symptoms. Second, the influence of certain predictor factors related with the patient and the intraoral device, were considered in the final response with this treatment option.

Methods: Forty-one patients constituted the final sample. Outcomes were measured using polysomnography, Epworth sleepiness scale and an analogue visual snoring scale, before treatment and once the device was properly titrated.

Results: Mean apnea-hypopnea index decreased from 22.5 ± 16.8 to 9.1 ± 11.6 (p ≤ 0.05), influencing only gender and Fujita index as predictor factors. The oxygen saturation, arousal index, percentages of sleep stages and sleep efficiency significantly improved with the mandibular advancement device (MAD) placement. The snoring index improved in absolute terms in 6.1 units and the excessive daytime sleepiness was reduced from 12.2 ± 4.7 to 8.5 ± 3.8 (p ≤ 0.00).

Conclusions: The successful treatment rate with the MAD was 65.8%. The placement and posterior regulation of the intraoral appliance efficiently reduced the apnea-hypopnea index, improved the sleep quality and the clinical symptomatology associated. Obstructive sleep apnea syndrome is a highly prevalent disease. and dentists should be aware of the benefits enhanced by this prosthetic device, considered the first treatment option by certain physicians.
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July 2018

Cemental tear: To know what we have neglected in dental practice.

J Formos Med Assoc 2018 Apr 29;117(4):261-267. Epub 2017 Sep 29.

School of Dentistry, National Taiwan University Medical College and Department of Dentistry, National Taiwan University Hospital, Taipei, Taiwan. Electronic address:

Cemental tear is a special kind of root surface fracture, contributing to periodontal and periapical breakdown. However, it is a challenge for doctors to diagnose, resulting in delayed or improper treatment. We reviewed the predisposing factors, location, radiographic/clinical characteristics, diagnosis and treatments of cemental tears. From the literature, patients with cemental tear were mainly males, over 60 year-old. Possible predisposing factors include gender, age, tooth type, traumatic occlusal force and vital teeth. Cemental tears were common in upper and lower anterior teeth, single or multiple, and can be present in cervical, middle and apical third of roots. Morphology of cemental tears can be either piece-shaped or U-shaped. Clinically, cemental tear shows a unitary periodontal pocket and signs/symptoms mimicking localized periodontitis, apical periodontitis and vertical root fractures. Treatment of cemental tears include scaling, root planning, root canal treatment, periodontal/periapical surgery, guided tissue regeneration, bone grafting, and intentional replantation. Recurrence of cemental tear is possible especially when the fracture involves root apex. Extraction is recommended for teeth with poor prognosis. In conclusion, cemental tears can involve both periodontal and periapical area. Dentists should understand the predisposing factors and clinical features of cemental tears for early diagnosis/treatment to prevent bone loss/tooth extraction.
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April 2018