Publications by authors named "F Zaccheo"

50 Publications

Lingual Flap Protection during Third Molar Surgery: A Literature Review.

Eur J Dent 2021 Aug 13. Epub 2021 Aug 13.

Department of Oral and Maxillofacial Sciences, School of Dentistry, Sapienza University of Rome, Rome, Italy.

The purpose of this review was to analyze how the retraction and protection of lingual flap (LF+) could influence the incidence of lingual nerve injury (LNI) during third molar extraction, as compared with protocols that do not involve handling of lingual tissue (LF). A literature review was performed from the "Medline" and "Scopus" medical databases, using the keywords "lingual nerve" and "third molar surgery." From the selected articles, the mean values for transitory and permanent LNI's incidence were elaborated, taking into account the group treated with LF+ technique and the group treated with LF technique. Of 480 articles, 11 studies were included in the review. The LF+ group counted 3,866 surgeries and it resulted in a transitory LNI's mean incidence of 2.98 ± 0.03% and a mean incidence of 0.1 ± 0.003% for permanent LNI. The LF group counted 5,938 surgeries with, respectively, 1.92 ± 0.02 and 0.49 ± 0.006% of transitory and permanent LNI's incidence mean values. The results of this study suggest that the application of LF+ techniques reduces the risk of damage and injuries of lingual nerve.
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http://dx.doi.org/10.1055/s-0041-1730042DOI Listing
August 2021

Repair of teeth with cracks in crowns and roots: An observational clinical study.

Int Endod J 2021 Oct 16;54(10):1738-1753. Epub 2021 Aug 16.

Head and Neck Department, "Fondazione Policlinico Universitario A. Gemelli - IRCCS" - Università Cattolica del Sacro Cuore, Rome, Italy.

Aim: This retrospective observational study investigated the survival rate of teeth with radicular cracks that were restored using composite materials.

Methodology: The study was approved by the Ethical Committee of Sistema Sanitario Nazionale (prot. N°2370CELazio1), Clinicaltrials.gov identifier: NCT04430205. Between 1991 and 2019, 87 teeth with radicular cracks (87 patients [46 men, 41 women, mean age 50.2 years]) were treated with adhesive composite restorations. Forty-five cracks were observed in the maxillary posterior teeth (molars and premolars), 40 in the mandibular posterior teeth and only two cracks in the anterior teeth, both in maxilla. Based on the depth of the crack, teeth were categorized as proximal radicular cracked teeth (PRCT), in which the fracture line was restricted within the pulpal floor or the coronal one-third of the root and deep radicular cracked teeth (DRCT), in which the fracture line extended to the middle and apical thirds of the root canal up to the apex. Bone loss/recovery was evaluated radiographically at 1-year follow-up. All patients were treated using surgical microscopy by the same operator. Logistic regression analysis was performed to determine independent predictors of extraction. Kaplan-Meier survival curves were used to analyse PRCT and DRCT.

Results: Among 87 cracked teeth, 66 were molars, 19 premolars and 2 incisors. Fifty-two were DRCT, 35 were PRCT, 46 had a periodontal probing defect. Patients were followed up for a mean of 66.9 months (standard deviation 44.6, min 1 to max 172). Lack of probing depth was a significant protective factor against extraction (odds ratio [OR] 0.027, 95% confidence interval [CI] 0.003-0.27, p < .05), whereas further bone loss (OR 10.63, 95% CI 2.08-54.36, p < .05) was a risk factor for extraction. More than 50% of teeth treated with the adhesive protocol were functional (46 of 87 teeth [χ test], p < .05) at 5-year follow-up. Among the PRCT group, a 78% survival rate at 5 years was found, while among the DRCT group, a 58% survival rate was found.

Conclusion: Composite resin restorations resulted in tooth survival in >50% of patients; 85.4% of PRCT and 61.5% of DRCT were functional after 5 years of follow-up.
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http://dx.doi.org/10.1111/iej.13598DOI Listing
October 2021

Reaction rate of NaOCl in contact with bovine dentine: effect of activation, exposure time, concentration and pH.

Int Endod J 2010 Dec 31;43(12):1108-15. Epub 2010 Aug 31.

Department of Cariology Endodontology Pedodontology, Academic Centre for Dentistry Amsterdam, Amsterdam, the Netherlands.

Aim: To determine the influence of activation method (ultrasound or laser), concentration, pH and exposure time on the reaction rate (RR) of NaOCl when in contact with dentinal walls.

Methodology: The walls from standardized root canals in bovine incisors were exposed to a standardized volume of sodium hypochlorite (NaOCl) with different concentrations (2% and 10%), pH (5 and 12) and exposure times (1 and 4min). Two irrigation protocols were tested: passive ultrasonic irrigation or laser activated irrigation with no activation as the control. The activation interval lasted 1min followed by a rest interval of 3 min with no activation. The RR was determined by measuring the iodine concentration using an iodine/thiosulfate titration method.

Results: Exposure time, concentration and activation method influenced the reaction rate of NaOCl whereas pH did not.

Conclusions: Activation is a strong modulator of the reaction rate of NaOCl. During the rest interval of 3min, the consumption of available chlorine increased significantly. This effect seems to be more pronounced after irrigant activation by laser. pH did not affect the reaction rate of 2% NaOCl.
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http://dx.doi.org/10.1111/j.1365-2591.2010.01785.xDOI Listing
December 2010

[Antibiotic prophylaxis with cefotaxime in gynecological endoscopy].

Minerva Ginecol 1994 Jun;46(6):337-41

Istituto di Ginecologia e Ostetricia, Università degli Studi, Torino.

It is now well known that even short operations of limited scope lower the body's defences by influencing the immune system. As a result this leads to a change in microbial flora which encourages an increase in the number of Gram-negative, aerobic, anaerobic and enterococcal colonies. In order to prevent infective postoperative complications which might occur after endoscopic surgery, the authors suggest using a series of valuable recommendations which are reported in this paper. Among these the most important is antibiotic prophylaxis which is able to limit the episodes of infection, thus making a positive contribution to the postoperative iter. Cefotaxime was chosen by the authors since this molecule offers both reliable and efficacious prophylaxis as has also been shown by other studies in the obstetrics and gynecological field. The results obtained by this study fully concord with data reported in the literature.
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June 1994

[Preliminary study of the use of s. adenosyl methionine in the management of male sterility].

Minerva Ginecol 1991 Apr;43(4):191-3

Istituto di Ginecologia ed Ostetricia, Università di Torino.

In a preliminary study 10 cases of male sterility were treated with 800 mg/day per os of Samyr-Bioresearch over three months. Increased basal motiligy of spermatozoa was observed in 6 out of 10 cases. The results of the study confirm the value and efficacy of SAM in the treatment of male sterility.
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April 1991
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