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SELF-INSTRUCTION
Orthodontics
What every dentist needs to know about clear aligners
Ariana Feizi
John K. Brooks
Monica P. Schneider
J. Rockwell Wright
Nasir Bashirelahi
This review highlights the clinical scope and limitations of clear aligner therapy.
2020 July/August; 68(4):23-26.
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Self-Instruction Exercise No. GD459
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Laser Therapy/Electrosurgery
Diode laser–assisted management of intraoral soft tissue overgrowth: a case series
Monika Pal
Asmita Saokar
Pratibha Gopalkrishna
Rajeshwari H. R.
Santhosh Kumar
A case series describes the use of a 980-nm diode laser to treat soft tissue enlargement of the oral cavity. The results suggest that a 980-nm diode laser may be advantageous for treating benign proliferative lesions of the oral mucosa with negligible adverse sequelae.
2020 July/August; 68(4):28-31.
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Basic Science
Comparison of the effects of whitening and conventional toothpastes on the wear rate of a composite resin
Mehrdad Gholipor
Faezeh Abolghasemzadeh
An in vitro study compared 3 whitening toothpastes and a nonwhitening daily toothpaste to determine their effects on the abrasive wear of a composite resin. Two bleaching toothpaste brands caused significantly more abrasion of the composite specimens than the control toothpaste.
2020 July/August; 68(4):32-35.
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SELF-INSTRUCTION
Special Patient Care
Denture-related oral mucosal lesions in Alzheimer disease: a case-control study
Lauren F. Schuch
Mariana I. Rocha
Michelle D. P. Matias
Marco T. G. Cintra
Raquel C. Ferreira
Maria C. F. Aguiar
A case-control study evaluated the association between denture-related oral mucosal lesions and Alzheimer disease (AD). Logistic regression analysis showed a higher prevalence of AD among individuals aged ≥ 80 years, those who were illiterate, users of tobacco, and patients with a slower gait, but the results suggested that AD is not a risk factor for denture-related oral mucosal lesions.
2020 July/August; 68(4):36-41.
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Self-Instruction Exercise No. GD460
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SELF-INSTRUCTION
Basic Science
The influence of LED irradiance on the degree of conversion of resin luting agents under translucent zirconia
Rafaella Grasel
Sheila Butler
Gildo C. Santos, Jr
Maria Jacinta Santos
This study aimed to evaluate the effect of different LED irradiance levels on the degree of conversion (DC) of dual-cured resin luting agents photocured through a high-translucency zirconia disc. The interpositioned zirconia did not reduce the DC of the tested luting agents compared to direct irradiation. The influence of the LED irradiance level on the DC was material dependent.
2020 July/August; 68(4):44-48.
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Self-Instruction Exercise No. GD461
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Basic Science
Retention of flowable composite resins in comparison to pit and fissure sealants: a systematic review and meta-analysis
Saumya Taneja
Abhinav Singh
A meta-analysis of studies comparing the 12- and 24-month retention rates of flowable composite resins and conventional pit and fissure sealants found that flowable composite resins showed better outcomes at 12 months. There was no statistically significant difference in retention rates at 24 months.
2020 July/August; 68(4):50-55.
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Implants
Bone fenestration repair with leukocyte-platelet–rich fibrin after placement of implants in the anterior maxilla: a case report
Ana Paula Carvalho
Danielle Carvalho Oliveira Coutinho
Carlos Roberto Garcia Araújo
André Antônio Pelegrine
Luís Otávio Miranda Cota
Paulo Antônio Martins-Júnior
Leukocyte-platelet–rich fibrin was placed in combination with deproteinized bovine mineral allograft to repair bone fenestration at the site of 2 implants. Complete coverage of the fenestration was shown at the 6-month follow-up.
2020 July/August; 68(4):56-60.
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Special Patient Care
Pyogenic granuloma in the tongue of a patient with Down syndrome
Elisângela de Souza Santos Dias
Laura Cruz-Mamani
Alessandro Antônio Costa Pereira
Felipe Fornias Sperandio
Kellen Cristina da Silva Gasque
Marina Lara de Carli
João Adolfo Costa Hanemann
This article presents the first reported case of a pyogenic granuloma affecting the tongue of an adult with Down syndrome. After 2 recurrences following lesion excision, the patient was provided with a silicone mouthguard to prevent the precipitating localized trauma, and no further recurrences were observed after 18 months.
2020 July/August; 68(4):61-63.
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Pediatric Dentistry
Amelogenesis imperfecta: use of cyanoacrylate as a desensitizing agent and its impact on oral health–related quality of life
Letícia Fernanda Moreira-Santos
Maisa Costa Tavares
Joana Ramos-Jorge
Cristiane Meira Assunção
Isabela Almeida Pordeus
Saul Martins Paiva
Marco Aurélio Benini Paschoal
Patrícia Maria Zarzar
Fernanda Morais Ferreira
A 5-year-old girl with amelogenesis imperfecta received applications of cyanoacrylate on the immature permanent first molars as a desensitizing agent after sodium fluoride varnish applications were unsuccessful in relieving sensitivity. Cyanoacrylate applications resulted in reductions in the patient’s frequency of complaints of pain and difficulty in drinking and eating.
2020 July/August; 68(4):64-67.
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Sleep Apnea & Appliance Therapy
Vertical dimension in dental sleep medicine oral appliance therapy
Jerry C. Hu
John C. Comisi
This pilot study evaluated the effect of including the vertical dimension, as assessed using pharyngometry, in the occlusal registration for oral appliance therapy. In 26 patients who completed the study, the mean apnea-hypopnea index (AHI) was 20.7 before therapy and 7.8 after therapy. Within the limitations of this study, the pharyngometer-established occlusal position was effective in lowering AHI without the need for appliance titration procedures.
2020 July/August; 68(4):69-76.
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Periodontics
Effect of cervical margin relocation technique with composite resin on the marginal integrity of a ceramic onlay: a case report
Muneera Abdulaziz Alhassan
Salwa Omar Bajunaid
Treatment of a large proximal carious lesion that extends below the cementoenamel junction is challenging. Large defects usually require replacement with indirect restorations (inlays, onlays, or crowns). However, when the gingival cavity margins are deep, procedures such as isolation of the operative field, proper cavity preparation, successful impression-making, and adhesive luting may be hindered unless soft gingival or hard bony tissues are removed to expose the cavity margin. The present case report describes the clinical application of a conservative cervical margin relocation technique for treating deep cavity margins. A patient presented with large distal carious lesions and necrotic pulps in both the maxillary and mandibular right first molars, which were diagnosed with symptomatic apical periodontitis. After root canal treatment of both teeth, the maxillary molar underwent a crown-lengthening surgical procedure and subsequent placement of a zirconia crown. In the mandibular molar, the cervical margin was relocated by placing a composite resin base at the proximal gingival cavity margins under meticulous isolation of the operative field. The tooth was restored with a composite core build-up and bonded ceramic onlay. The satisfactory outcome suggested a promising prognosis for the oral health of the patient.
2020 July/August; 68(4):e1-e3.
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