Revista clínica de periodoncia, implantología y rehabilitación oral最新文献

In recent years, aesthetics has become a common reason for a dental visit. Patients believe that the aesthetics of the smile depends on the teeth. However, when the clinical evaluation is carried out, the professional can also detect aesthetic dissatisfaction of a patient, conditioned by factors of the oral environment, such as periodontium soft tissue, in particular the increased gingiva or low insertion of the mucosa of the labial frenulum. These may cause patients to believe that their teeth are reduced in size, due to much more gum being exposed when they smile.

The clinical case is presented of a female patient who made a dental appointment because of aesthetic dissatisfaction with her smile and dental size. After the intraoral assessment was carried out, a diagnosis was made of a localized gingivitis associated with plaque and presence of an elongated papillary frenum, giving the appearance of short or small teeth. It was decided to perform a minimally invasive surgical procedure to generate the reposition of soft tissues and improve harmony, respecting biological spaces. High-power laser therapy was performed, due to the advantages of its use, such as reduced intervention time, no requirement of local anesthesia, less bleeding, shorter healing time, and unnecessary use of sutures, compared with conventional surgery carried out with scalpel. Immediately after the procedure, the patient felt satisfaction and no pain. On day 15 post-surgery it was observed that there was no swelling of gingival tissue, reposition of the insertion of the upper frenum, and free edge of marginal gingiva in anterior-superior teeth in an apical direction.

Introduction

Xerostomia is a common chronic health condition that affects a great number of elderly people. Palliative treatment, such as salivary substitutes should be used, but these products are not accessible in the Chilean market.

Objectives

To evaluate the efficacy of a new Chamomile and linseed based saliva substitute in the reduction of xerostomía-associated symptomatology in elderly people.

Methodology

Forty elderly subjects presenting with xerostomia of various origins were selected. Chamomile and linseed based saliva substitute and a carboxymethylcellulose based conventional artificial saliva were tested using a double-blind, randomized, cross-over clinical trial with an intervining wash out period.

Results

All (100%) of subjects had a sensation of dry mouth, and 58.8% mentioned a sensation of thick saliva, 52.9% needed to drink liquids to swallow, and with a sensation of swallowing difficulty. Burning tongue sensation was recorded in 23.5% of the patients. The most frequent pathologies in the sample were arterial hypertension and arthritis. Results of the clinical tests showed that Chamomile and linseed based saliva substitute significantly relieves the sensation of dry mouth and the sensation of thick saliva (Wilcoxon test P < .05).

Conclusion

New chamomile and linseed based saliva substitute was effective in relieving xerostomia symptoms in elderly people, and could improve the quality of life of population affected by this condition.

Health care services show interest in establishing rehabilitation protocols with mandibular overdentures retained on two implants, but they require scientific evidence evaluated with reliable instruments.

Objective

To evaluate masticatory performance, retention and therapeutic satisfaction of patientswith a model rehabilitation protocol for implant-retained overdentures.

Materials and methods

This study was conducted between the Faculty of Dentistry, University of Concepción (FAO UDEC) and Bío Bío Health Service(SS-Bío Bio). Fourteen patients, selected users of Bío Bío Health Service, Los Angeles, received implant-overdentures using a protocol of the Oral Rehabilitation Prosthesis Program (ROMPE FAO UDEC). Two Neodent™ implants (3.75 × 11 and 13 mm) were installed in each patient and connected with early loading. Before and after installing and connecting the implants, (0, 30 and 60 days), therapeutic satisfaction was assessed using the ROMPE FAO UDEC graduate program questionnaire. Retention was measured with a Force Gauge Dynamometer, and masticatory performance was quantified with a peanut screening test. Data were processed with SPSS 16.0 program and Kolmogorov-Smirnov test and t- test were used. Significance was set at P < .05.

Results

Masticatory efficiency significantly increases after connectingthe implants. Therapeutic satisfaction with the prosthesis and the tensile strength are highly significant.

Conclusions

These results coincide with the vast majority of published studies. It can be scientifically argued that the ROMPE FAO UDEC, SS Bío Bío overdenture protocol is a reliable alternative.

There are several types of oral and pharyngeal cancer, with the most frequent being squamous cell carcinoma (90%). It is more common in men, in adulthood. It is associated with multiple risk factors, mainly smoking and alcohol consumption.

Objective

To describe mortality due to oral and pharyngeal cancer in Chile between 2002 and 2010.

Method

Ecological study. The data obtained from death certificates from the Department of Health Statistics and Information, Ministry of Health of Chile and were analyzed according to anatomical location, sex, age, education level, and area of urban/rural residence.

Results

The mortality rate in the period studied ranged from 1.11 to 1.25 per 100000 inhabitants. The male:female ratio ranged from 2.3:1, with 50% mortality in women over 75 years-old, while in men it was 24.86%. Most cases (90.7%) lived in an urban area. A total of 54.61% of deaths occurred in people with basic/primary education level. Tongu cancer accounted for 17.7% of the deaths.

Conclusions

The mortality rate for oral and pharyngeal cancer in Chile remained stable throughout the study period, and was higher in men. The women died at an older age than men. The deaths were mostly in people with a lower educational level. The most common anatomical location was the tongue.

A case is reported of a 28-year-old female patient, with active orthodontic treatment, who was treated in the dental practice for aesthetic reasons. The diagnosis was gingival overgrowth, induced by orthodontic treatment, and maxillary exostosis. The treatment consisted of periodontal cosmetic surgery and removing the exostosis. During surgery, samples of gingiva, saliva and alveolar bone were obtained. Before take the samples, the patient signed an informed consent. Nickel concentrations in ng/mL were measured by atomic absorption spectrophotometry. The mean nickel concentration in the samples were: 986.4 ng/ml in saliva, 779.5 ng/ml in alveolar bone, and 620.5 ng/ml in the case of gingiva. The high accumulation of nickel observed in each sample type is of particular interest because exposure to metals contained in orthodontic appliances is currently an important public health problem in dentistry.

Objective

The aim of this study was to verify the parallelism between the occlusal plane and three different Camper's line definitions in a Chilean eugnathic population.

Material and methods

Cross-sectional study was conducted on 60 Chilean eugnathic young adults (32 males and 28 females) between 18 and 35 years old. Lateral digital standardised cephalometric radiographs and facial photographs were used. The cephalometric analysis was superimposed over the lateral photographs with Quick-Ceph^® software. The Camper's line was traced from three different starting points at the Tragus (upper, middle and lower) to the lowest point below the nostrils. The angles obtained between the occlusal plane and the resulting Camper's lines were measured with Screen Protractor® software.

Results

The ANOVA test showed significant differences for the obtained angles. The mean parallelism between the medium Camper's line and the occlusal plane was -0.63°. In males, the medium Camper's line was more parallel to the occlusal plane (1.11°), and for females, the upper Camper's line was the most parallel to the occlusal plane (1.39°).

Conclusion

The parallelism was verified for the medium Camper's line in males, and for the upper Camper's line in females.

The aim of this article is to review the available evidence on the occurrence of bisphosphonate associated osteonecrosis of the jaw, and endodontic treatment aproaches. An extensive literature search was performed in databases such as, MEDLINE, EMBASE and CENTRAL. Selection criteria to consider endodontics and bisphosphonate-associated osteonecrosis of the jaw were previously defined. Relevant evidence of the articles that met the selection criteria was extracted. The clinical aspects discussed in this article were endodontic indications and therapeutic recommendations in patients with risk of bisphosphonate associated osteonecrosis. Finally, some recommendations are proposed to prevent bisphosphonate associated osteonecrosis of the jaw in the endodontic context

Objective

A study was conducted to investigate the possible influence of the single nucleotide polymorphism (SNP) IL-10-592 C/A on the occurrence and load of the periodontal pathogens: P. gingivalis, T. forsythia, T. denticola and A. Actinomycetemcomitans; as well to investigate the influence of microbial and genetic factors on the modulation of local IL-10 mRNA levels.

Methodology

The study included 117 cases and 58 controls. After clinical examination microbiological samples were obtained and the detection/quantification of the target bacterial species was performed by RT-PCR. SNP rs1800872 was assayed by restriction fragment length polymorphism (RFLP).

Results

Allele distribution of rs1800872 was in Hardy-Weinberg equilibrium (P = 64). As previously reported, polymorphic subjects demonstrated decreased IL-10 expression and increased risk of suffering chronic periodontitis. IL-10-592C/A rs1800872 SNP was not associated with the detection or the bacterial load of the investigated pathogens. Moreover, the presence/load of bacteria at periodontal sites did not influence IL-10 expression, which was determined by the genetic background of the study subjects. IL-10-592C/A SNP was not associated with detection/bacterial load of pathogenic bacteria. IL-10 expression levels were determined by the genetic background and were independent of the bacterial microenvironment.

Hyperpigmentation of the gingiva is an aesthetic problem in some patients, particularly if the pigment is in the facial area of the gum and is visible during smiling and speaking.

Objective

The purpose of this study was to evaluate the degree of repigmentation of gingival melanosis treated with the combination of using the scalpel and gingival abrasion.

Material and method

Six patients were evaluated with a diagnosis of physiological melanin pigmentation at the gingiva of the maxilla, and for aesthetic reasons needed the pigment removed (depigmentation) with a scalpel and a rotary abrasive. The parameters evaluated were the intensity of pigmentation index (PI) and gingival pigmentation index (GPI).

Results

After a mean of 18months ± 4.5 months after the procedure, 2 patients had a mild repigmentation, and 4 cases with an absence of IP, and all 6 cases showed an PGI of zero in the postoperative period.

Conclusion

The removal of melanin spots combining the use of the scalpel and abrasion is an effective technique, and has a low rate of repigmentation after 18 months follow-up.