Advances in Oral and Maxillofacial Surgery最新文献

Introduction

Mucous Retention cyst is a mass of fluid containing serous or mucous. Nasal septum deviation (NSD) is a condition that may cause sinusitis in severe cases. In addition, the frequency of maxillary sinus retention cysts is higher in patients with sinusitis than in patients without sinusitis. This study aimed to evaluate the retention cyst in the paranasal sinuses in patients with septum deviation compared with those without NSD.

Materials and methods

This observational study was performed by simple random sampling from CBCT scans of patients over 18 years’ old those referred to the radiology department of Isfahan Dental School (Khorasgan) 100 patients with NSD and 100 patients with no NSD. Data were analyzed by independent samples t-test, Mann-Whitney U test, Chi-square, and Fisher exact tests.

Results

Mucous retention cysts were observed in 5% of patients without NSD and 19% of patients with NSD (p = 0.002). Also, the number of cyst retention was significantly higher in patients with NSD (p = 0.002) but there was no significant relationship between cyst side and nasal deviation in patients with NSD (p = 1.00).

Conclusion

There was a significant relationship between the occurrence of mucous retention cysts and NSD and the number of cysts in the group with greater deviation.

Objectives

The objective was to evaluate the effects of melatonin administration on the post-extraction alveoli of rats exposed to alendronate.

Materials and methods

This was a pre-clinical cohort study of adult male Wistar rats, conducted over a period of 5 months in an animal facility suitable for animal experiments.

Rats in groups 1 and 2 received melatonin and vitamin D respectively per os at a rate of 1 mg/kg/week and 0.25 mg/kg twice a week for 4 weeks. Group 3 received saline subcutaneously. All rats received alendronate at a dose of 0.05 mg/kg twice/week for 8 weeks. Four weeks after drug administration, a dental extraction was performed along with blood sampling to determine serum levels of RANKL and OPG. At eight weeks, the rats were sacrificed and the jaw blocks were removed for CT and histological examination.

Results

Overall, three groups of 12 rats were formed. From the fourth to the eighth week, the frequency of stage 3 osteonecrotic lesions in the post-extraction sockets had increased in the control group from 8.33% to 66.6%. In the melatonin and vitamin D groups, the frequency of corresponding stage 3 osteonecrotic lesions increased from 0 to 17% and 0–8.33% respectively.

Conclusion

Oral administration of melatonin prior to tooth extraction in alendronate-exposed rats reduces the risk of developing osteonecrotic jaw lesions.

Background

The aim of this study was to evaluate the impact of maxillomandibular advancement (MMA) on oral health-related quality of life (OHRQoL) in obstructive sleep apnea (OSA) patients prior to, immediately after, and up to 1 year after surgery.

Methods

In this prospective study, OHRQoL was measured with the use of the Dutch version of the Oral Health Impact Profile questionnaire (OHIP-14NL). A total of 19 patients were asked to complete the questionnaires prior to surgery (T₀), on the first 7 days post-surgery (T₁-T₇), and 1 month (T₈), 6 months (T₉), and at least 1 year post surgery (T₁₀). The baseline OHIP score was compared with the post-surgery scores using the Wilcoxon signed-rank test with Bonferroni correction (significance at P < .005).

Results

Compared with the baseline, the OHIP score significantly increased in the first month after MMA. At 6 months (T₉) and 1 year (T₁₀), the OHIP score decreased compared relative to scores in the immediate postoperative period (T₁-T₈). However, there was no significant difference found in comparison with the baseline (T₀).

Conclusion

This study indicates that in OSA patients who undergo MMA, OHRQoL deteriorates in the immediate postoperative period. However, at 6 months to 1 year post surgery, OHRQoL does not significantly differ from its baseline value prior to MMA.

Background

Three-dimensional (3D) imaging allows assessment of changes in condylar volume and morphology. The association between the morphology of the condyle and post-treatment functional impairment is still unclear.

Purpose

To analyse the volume of both condyles after a unilateral condylar fracture and to evaluate the relationship between condylar volume and mandibular function.

Methods

A pilot study was performed in which data from a recently published cross-sectional study were used. In a previously published cross-sectional study a cone beam computed tomography scan was acquired of patients with a unilateral condyle fracture. These scans were analysed, and the condylar volumes were measured and related to the outcomes of the Mandibular Functional Impairment Questionnaire and the Mixing Ability Test.

Results

Patients with larger condyles have a better recovery regarding function than patient with smaller condyles, independent of the received treatment. This study showed a significant positive correlation between masticatory function and the post-treatment volume of the fractured condyle. Men tended to have larger condyle volumes than women and seem to have a better outcome in function. A larger condyle volume was associated with an increase of the mouth opening.

Conclusion

Given that the volume of the condyle is associated with the function of the temporomandibular joint, imaging may be helpful to stratify the pathophysiological adaptation mechanisms and to improve our ability to plan individualized treatment.

We present a 33-year-old male case who underwent pathologic oral surgery. The mydriasis was completely resolved approximately 7 h after the end of the operation without any medical or surgical interventions. Neuro-ophthalmic exam showed that there was no ptosis or ophthalmoplegia. There was no clinical evidence for a Horner syndrome. Meticulous ophthalmological examination, especially pupillary examination, plays an important role in diagnosis and management of neurological disease.

Supernumerary teeth are stomatological anomalies where teeth exist in excess number to the normal dental count. Our case presents a healthy Saudi Arabian male with five supernumerary teeth and a family/relative history completely clear of such an anomaly. He was diagnosed during his checkup with the general dental practitioner and was referred to the maxillofacial surgeon in Canberra, Australia. His treatment involved surgical removal of four supernumerary teeth under general anesthesia and enforcement of good oral hygiene.

Purpose

Postoperative sore throat (POST) is a common complication. We compared postoperative nebulized furosemide, budesonide, and sodium chloride solution for POST in patients undergoing maxillofacial surgery.

Methods

75 patients were randomly divided into 3 groups. Anesthesia induction and intubation were routinely performed. Following emergence, the patients were randomized to one of three groups. Group F was treated with 40mg of aerosolized furosemide, group B received 2 mg of aerosolized budesonide and Group S was given aerosolized 0.9% sodium chloride solution. Patients were assessed for sore throat,hoarseness, foreign body sensation,dry mouth, cough，nausea and vomiting at 15 min, 1, 2, 4, 6, 8, 12, 24 and 48 h after extubation.

Results

Patients all in three groups had comparable clinical and surgical data.Compared to Group S, POST at rest and during swallowing was significantly lower in Group F and Group B at 2, 4, 6, 8 and 12 h (P < 0.05).Compared to Group S, the incidence of postoperative hoarseness was significantly lower in Group F at 1,2,4,6,8,12 h (P < 0.05)and significantly lower in Group B at 6 h and 8 h (P < 0.05). In particular, the incidence of hoarseness at 1,2,4,24 h in group F was significantly lower than that in group B (P < 0.05). In terms of foreign body sensation, group F was significantly lower than group S at 4 h and 6 h(P < 0.05).

Conclusions

Postoperative nebulization of furosemide or budesonide are effective ways to reduce the severity of POST. Nebulized furosemide has more advantages in reducing postoperative hoarseness.

Self-medication is a major public health issue because of the hazard it creates, such as therapeutic failures and the emergence of multi-resistant bacteria, but it is still poorly documented in our local context.

Our goal was to determine the prevalence of self-medication due oral diseases when they visit the Odontostomatology unit of a secondary health facility in Cameroon.

Materials and methods

From February to May 2020, we conducted a descriptive cross-sectional study at the Odontostomatology unit of the PCC Dental Office of Djoungolo. After obtaining informed consent, data was collected using questionnaires. For the statistical analysis, the significance level was set at 5%.

Results

We retained 147 patients (75 women and 72 men) in our study. The average age was 35.3 years ± 13.5 years. Self-medication was used by 88% of our patients, and the most common reason for consultation (81% of cases) was dental pain. The most used drugs for self-medication in our patients were NSAIDs and analgesics. In our study, amoxicillin was the most used antibiotic (21%). In terms of supply routes, the pharmacy was the most common source of drug supply (39%). In our study, the factors significantly associated with self-medication were age >30, low levels of education, and certain socio-professional activities.

Conclusion

The prevalence of self-medication during oral diseases is high and is closely related to our country's socioeconomic context. This study highlights the primacy of educating patients about the risks of taking drugs without a prescription and the benefits of having routine consultations with an oral physician.

Squamous Odontogenic Tumor is a rare, benign lesion of jaws affecting all age groups. This article highlights a case of Squamous Odontogenic Tumor of a 35yr old Male patient who has been clinically and radiographically diagnosed to be Pyogenic granuloma.

Background

Computer-aided design/Computer-aided manufacturing (CAD/CAM) milled root-analogue implant (RAI) systems can be a great alternative to conventional dental implants if the indication is appropriate. It has been shown that RAIs can reduce resorption processes of bone and soft tissue as a form of immediate implantation. However, such digital workflows can lead to errors resulting from intrinsic and extrinsic factors and can potentially increase with each transition in the digital workflow. Whilst the studies on RAIs have focused on osseointegration and implant success, to date, none of them have addressed the prosthetic abutment design of RAIs. Therefore, this case report highlights the importance of proper abutment design of a RAI and shows how to properly deal with an undersized prosthetic abutment in an already osseointegrated RAI, in the maxillary esthetic zone.

Case presentation

We report the case of a 34-year-old female patient who was implanted with a RAI in the maxillary esthetic zone. The tooth 11 was found to not be worthy of preservation and was carefully extracted. Afterwards, a CAD/CAM milled RAI was press-fit placed immediately. After the RAI had healed, the abutment was found to be prosthetically undersized. As a result, the implant could not be directly restored with a conventional crown, as the retention surface was too small to ensure a permanent hold. For this reason, the decision was made to incorporate a retention pin in the definitive crown, which engaged palatially in a retention groove by drilling into the abutment. Thus, a permanent fixation of the final prosthetic restoration was achieved.

Conclusions

Appropriate abutment design is crucial for the prosthetic treatment of the RAI, especially in the esthetic zone. In the future, the planning and development of RAIs should focus on the optimal abutment design and the sources of error within the planning and manufacturing process. Finally, the increasing outsourcing of steps within the prosthetic planning can lead to errors and should be taken with great caution.