1,721,167 research outputs found
Teeth treated with apicOectomies had acceptable 3-year survival rates, based on insurance claims data
No full textSubjects
This retrospective data analysis was based on the claims data of a major German
national health insurance company (BARMER GEK) that represent about 8.6
million persons. The study data included about 93,797 apicoectomies performed
in 77,636 patients (26,640 men), with a mean age of 50.58 years (standard deviation
of 15.59; range, 8-99 years).
Key Exposure/Study factor
The intervention analyzed was apicoectomy. Diagnosis and tooth condition were
unknown. The observation period was up to 3 years. Most of the apicoectomies
were delivered in anterior teeth (n 5 32,353) and premolars (n 5 32,340) as
compared to molar teeth (n 5 29,104).
Main Outcome Measure
The main outcome measure was tooth survival as evaluated 1, 2, and 3 years after
surgery.
Main Results
The principal finding was that cumulative survival rates for all teeth were 91.4% at
1 year, 85.7% at 2 years, and 81.6% at 3 years. The 3-year survival rate was
highest in anterior teeth (84.0%) and similar in premolars (80.4%) and molars
(80.2%). The difference between anterior teeth and posterior teeth was highly
significant (P ,.0001). The survival rate was higher in men than in women (83.5%
vs 80.6%). This difference was highly significant (P ,.0001). Analyzing survival by
age, significant differences among the age groups were found (P , .0001).
Analysis of survival by age revealed continuously declining survival rates with age
(93.3% for subjects under age 18 years to 75.6% for subjects over age 84 years).
Conclusions
The authors concluded that the survival rates for teeth treated with apicoectomies
are acceptable for an intervention that is primarily conducted as a retreatment after failure of root canal treatment. The study
underlined that the rate of failures as evaluated each year
potentially indicates a minor tendency toward more early
failures
Long-Term Outcomes for the Treatment of Atrophic Posterior Maxilla : A Systematic Review of Literature
No full textPurpose The aim of the present systematic review was to estimate the implant survival rate in different types of techniques for the rehabilitation of posterior atrophic maxilla, after at least 3 years of follow-up.
Materials and Methods MEDLINE database was searched using a combination of specific terms. A hand searching of the relevant journals and of the reference lists of systematic reviews was also performed. All retrospective and prospective studies evaluating short implants in posterior maxilla, osteotome sinus floor elevation and lateral approach sinus floor elevation, and having a follow-up of at least 3 years, were included.
Results Forty-four articles were included in the review. In four studies reporting on a total of 901 short implants, the implant survival rate varied from 86.5% to 98.2% with up to 5 years follow-up. For the osteotome technique, 1,208 implants in eight studies were considered, showing a survival rate varying from 95.4% to 100% after 3-year follow-up. Twenty-nine studies, accounting for 6,940 implants placed in 2,707 sinuses augmented through lateral technique were considered. Implant survival rate varied from 75.57% to 100%. Only three comparative studies were found that showed no significant difference in clinical outcomes between lateral approach and osteotome technique.
Conclusions Sinus floor elevation with the lateral approach and with the osteotome technique is an effective and well-documented therapeutic option for the rehabilitation of atrophic posterior maxilla. The use of short implants is promising but needs further investigation to be considered as effective as the other techniques in the long term. However, the indication for the three different techniques is not perfectly equivalent and the treatment choice should be based on a careful evaluation of the individual case, in particular on the available residual bone
Mini-Invasive osteotome sinus floor elevation in partially edentulous atrophic maxilla using reduced length dental implants : interim results of a prospective study
No full textPurpose The purpose of this prospective study was to investigate the clinical success of a treatment protocol for the rehabilitation of edentulous posterior maxilla consisting of the positioning of short implants in combination with transcrestal sinus lifting, with the adjunct of pure (leukocyte-free) platelet-rich plasma, in order to reducing the risk of membrane perforation and other surgical complications.
Materials and Methods A total of 25 patients (65 implants) were treated. Pure platelet-rich plasma was used in the sinus membrane lifting procedure. Implants of 8.5 mm length or shorter were splinted through the prosthetic rehabilitation with one or more implants longer than 10 mm.
Results After a follow-up period ranging from 12 to 19 months (mean 14.4 months) after prosthetic loading, 23 patients (60 implants) were evaluated. Overall implant success and survival rates were 100% at 1 year follow-up visit. All prosthetic rehabilitations were successful and in function. After 1 year of loading, peri-implant bone loss averaged 0.34 ± 0.21 mm for 8.5 mm or shorter implants (n = 25) and 0.36 ± 0.30 mm for longer implants (n = 35) (overall mean 0.35 ± 0.25 mm) without significant difference between the two groups (p = 0.23).
Conclusions The proposed treatment protocol is a viable option for the rehabilitation of edentulous posterior atrophic maxilla
Do gingival soft tissues benefit from the application of a papilla preservation flap technique in endodontic surgery?
No full textPURPOSE:
A healthy gingival condition after endodontic surgery may depend on adequate soft tissue management. The aim of this study was to compare 2 incision techniques, papilla base incision (PBI) and intrasulcular flap (IS), which are currently used in endodontic surgery.
MATERIALS AND METHODS:
In the present nonrandomized controlled clinical trial, patients requiring endodontic surgery on a single tooth were enrolled. PBI was used in 1 group and IS was used in the other group. The primary outcomes were changes in periodontal probing depth, gingival recession, and height of the interproximal mesial and distal papillae. Outcome variables were assessed preoperatively and 6 months after surgery. Between-group differences were evaluated through appropriate statistical analysis, with significance set at a P value equal to .05.
RESULTS:
Each group was composed of 12 patients and the 2 groups were comparable at baseline. Two weeks after surgery, papilla height decreased significantly in the IS group (2.05 and 1.80 mm at the mesial and distal aspects, respectively), whereas no significant decrease in papilla height was observed in the PBI group (0.10 and 0.20 mm). No statistically significant difference between groups was observed after 6 months. No significant difference between groups was found for gingival recession or probing depth at any follow-up time.
CONCLUSIONS:
Better soft tissue preservation in the early postoperative period was achieved using the PBI approach compared with the IS approach. The PBI can be recommended for endodontic surgical procedures involving esthetic regions
Use of Plasma Rich in Growth Factor for Schneiderian membrane management during maxillary sinus augmentation procedure
No full textThe aim of this pilot study was to present a novel technique for the management of the Schneiderian membrane during maxillary sinus lift surgery using Plasma Rich in Growth Factors (PRGF).Eight maxillary sinuses were augmented in 8 patients. Two small perforations of the Schneiderian membrane occurred during lifting procedure, which were solved using PRGF clot before grafting the site with PRGF and anorganic bovine bone. With the exception of one patient who experienced pain, following an acute sinus infection after three days of uneventful healing, postoperative patients' quality of life was generally good. The most common complication (50% of cases) was hematoma which disappeared after one week.Despite the limitations of this study, concerning the sample size and the study design, the use of PRGF may be helpful in reducing complications following sinus lift surgery. More well-designed studies, with larger sample size, are needed to validate this protocol
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Valutazione clinica comparativa fra due collutori agli oli essenziali con e senza alcol
No full textObjectives.
Essential oils have been used for years as components of mouthwashes. Although their antiseptic potency is inferior to that of chlorhexidine, they can be used daily as an adjunct to daily oral hygiene and as a treatment for halitosis. The aim of this prospective, double-blind, comparative study was to evaluate the efficacy of two mouthwashes containing essential oils, one without alcohol and the other containing 22% alcohol. Of the 31 patients enrolled, 28 completed the protocol, which consisted in two 15-day cycles (one for each product tested) of twice-a-day rinses.
Materials and methods.
Full Mouth Bleeding Scores (FMBS%), Full Mouth Plaque Scores (FMPS%) and Stain Indexes (SI) were recorded. Patients also filled in a questionnaire regarding their personal reactions to each mouthwash.
Results.
The two products were equally effective in reducing oral hygiene indexes. The use of the mouthwash containing alcohol was associated with an increased sensation of “burning”.
Conclusions.
Despite the similar antiplaque activities of these products, the risk/benefit ratio of daily use of mouthwashes containing alcohol (sometimes at high concentrations) must be examined according to recent scientific evidence
L’influenza dell’igiene orale e della terapia parodontale sull’ipersensibilità dentinale
No full textCollutorio modificato per la riduzione delle pigmentazioni da clorexidina
No full textLe pigmentazioni dentarie da clorexidina rappresentano uno degli effetti collaterali più comuni dei collutori contenenti questo principio attivo, il cui utilizzo deve essere pertanto limitato nel tempo. Scopo di questo studio è valutare l’efficacia di un collutorio con clorexidina allo 0,2% senza alcool contenente un sistema antipigmentazione, denominato ADS®, confrontato con un collutorio tradizionale contenente clorexidina allo 0,2% in soluzione alcolica, nel contrastare le pigmentazioni dentarie. Sono stati selezionati 30 pazienti ambosessi, ognuno dei quali ha effettuato due cicli di 15 giorni con i due collutori dello studio
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