The rubber dam is the oldest and still the most effective isolation device in restorative dentistry, and its reputation as an inconvenient extra step survives among practitioners who have never measured the time it actually saves. The dam isolates the field from the saliva, the tongue, and the ch...

The margin is the most vulnerable line in fixed prosthodontics, because it is the only boundary between the prepared tooth, the restoration, and the oral environment that the clinician cannot fully seal by effort alone. A restoration that fits seamlessly at the margin resists leakage, caries, and...

The masticatory system is built for function, yet much of its damage comes from habits that serve no purpose. Parafunctional habits, the clenching, the grinding, and the tongue pressing performed outside of normal function, sit behind much of the tooth wear, the temporomandibular pain, and the my...

Chronic mouth breathing in the growing child is seldom a dental problem in origin and almost always a facial one in consequence. The child who sleeps with the mouth open bypasses the physiologic benefits of nasal respiration, and the posture that the airway forces upon the tongue, the mandible, a...

The immediate denture is the prosthesis placed on the day the teeth are extracted, sparing the patient the edentulous interval the conventional denture imposes and preserving the occlusal vertical dimension, the facial support, and the appearance through the transition. The clinical literature ha...

The Class III malocclusion in the growing child carries a special urgency, because the maxillary deficiency that marks the pattern does not correct itself and the window for the growth-modifying treatment closes with the skeletal maturity. Elastic protraction, the orthopedic therapy that pulls th...

The denture is the only prosthetic device in medicine that its owner is expected to wear daily and to clean personally, yet it is also the device most commonly neglected until the signs of disease appear. A biofilm that forms on the acrylic base within hours is a reservoir of candida and bacteria...

The complete denture stands or falls on the impression, because the impression determines how well the base follows the mucous membrane and how evenly the occlusal load is distributed across the basal seat. For a century the profession has argued about whether the impression should record the muc...

The all-ceramic crown has moved from a niche product to the default restoration for the anterior single tooth in a single clinical generation, driven by patient demand for metal-free appearance and by materials that now survive functional loading as reliably as their metal-ceramic predecessors. A...

The vertical root fracture is among the most frustrating diagnoses in dentistry: the tooth is often restored, asymptomatic for years, and then develops a sinus tract or a bone loss that no retreatment seems to cure. The fracture is a complete or incomplete longitudinal split of the root, frequent...

Toothpaste is the most widely used preventive tool in dentistry, and most of what it does depends on a handful of ingredients that work in a deliberate sequence: the abrasives scrub away the pellicle and the stain, the fluoride strengthens the enamel against the next acid attack, and the detergen...

The esthetic restoration that fails does not fail in the laboratory; it fails at the moment of shade selection, when the eye and the shade guide come to a hasty and ill-lit agreement. Shade matching is the disciplined gathering of color information under controlled conditions before the impressio...

The provisional crown is the working model for the finished restoration, protecting the prepared tooth, holding the position of the gingiva and the occlusion, and telling the patient exactly what the permanent crown will feel like. It is too often treated as a placeholder, something quickly press...

The occlusal night guard is a rigid or semi-rigid appliance that sits between the upper and lower teeth during sleep, and it is the first line of defense against the destruction of bruxism. It does not stop the grinding, and no appliance does, but it absorbs the force, protects the enamel and the...

Four-handed dentistry is a team-based method in which the seated dentist and the seated assistant work together around the patient, each performing the tasks they are best suited for, so that instruments, materials, and suction are always ready at the moment they are needed. The system, formalize...

Dental radiographs are among the safest and most useful investigations in clinical medicine, yet they deliver ionizing radiation to living tissue, and the responsible practice is the one that keeps that dose as low as reasonably achievable. This principle, known as ALARA, governs every decision a...

Magnification has become an indispensable tool in contemporary dentistry, turning the margin of a preparation, the entrance of a canal, and the surface of a restoration into a landscape the eye can actually read. The choice, however, is not simply more magnification, because every increase in pow...

The cement that holds a crown, a bridge, or an inlay is the smallest component of the restoration and often the first to fail, and its choice sits on a quiet triad: the material of the restoration, the condition of the tooth, and the demands of the cement itself. The modern cabinet holds water-ba...

The composite resin has replaced amalgam as the default filling material of the modern practice, and its versatility comes from a tunable recipe of two components: the resin matrix that binds the material and the glass or ceramic filler that gives it strength and polish. Because the manufacturer ...

The removal of supra- and subgingival biofilm is the foundation of periodontal therapy, and the ultrasonic scaler has become the instrument of choice for much of this work. A mechanical tip vibrating at high frequency, energized by an oscillating water spray, disrupts the biofilm, chips away the ...

Teledentistry uses telecommunication technology to provide dental care at a distance, allowing the clinician to assess a patient, triage an emergency, plan a case, or monitor a course of treatment without a physical visit. The idea is not new, but the pandemic of 2020 accelerated its adoption and...