NDSE study materials
NDSE study resources

NDSE key terms

NDSE · Get comfortable with the vocabulary.

Clinical attachment level

The position of periodontal attachment relative to a fixed landmark, commonly the cementoenamel junction, interpreted with probing and recession measurements.

Peri-implant mucositis

Inflammation of the peri-implant soft tissues without progressive loss of supporting bone beyond expected remodeling, distinguished from peri-implantitis.

Pulp sensibility

A response to a neural stimulus that contributes to pulp assessment but does not directly establish the presence of pulpal blood flow.

Working length

The planned length for root canal procedures, established by appropriate assessment of canal anatomy and measuring methods to guide safe preparation.

Oroantral communication

An opening between the oral cavity and maxillary sinus that can occur after procedures near the posterior maxillary sinus floor.

Hemostasis

The control of bleeding through appropriate local and, when needed, systemic assessment and measures matched to the cause and clinical circumstances.

Leukoplakia

A clinical term for a predominantly white oral patch after exclusion of other definable conditions, requiring assessment rather than assuming a histologic diagnosis.

Xerostomia

The subjective experience of a dry mouth, which is related to but not identical with objectively measured reduction in salivary secretion.

Imaging justification

A clinical decision that the expected diagnostic benefit of a selected exposure outweighs its risks for a defined question and patient.

Field of view

The anatomical volume covered by an imaging acquisition, selected to include necessary structures while avoiding unnecessary coverage when the technique permits.

Ferrule

A configuration of remaining coronal tooth structure encircled by a restoration that helps distribute functional stresses in a structurally compromised tooth.

Indirect retention

Control of rotation of a removable partial denture away from supporting tissues through components positioned appropriately relative to its fulcrum line.

Leeway space

The difference in combined widths between primary canines and molars and their permanent successors, relevant to mixed-dentition space management.

Assent

Developmentally appropriate participation and agreement by a child in a proposed care process, considered alongside the legally valid consent requirements.

Anchorage

Resistance to unwanted movement of the supporting unit during orthodontic treatment, planned to control the expression of reciprocal mechanical forces.

Retention

The phase and measures intended to help maintain corrected tooth positions after active orthodontic movement while adaptation and other change risks continue.

Incidence

The occurrence of new cases of a defined condition among people at risk during a specified follow-up period or person-time.

Allocation concealment

A method that prevents recruiters from knowing upcoming randomized assignments, reducing the opportunity to influence enrollment according to the next treatment.

Ventilation

Movement of air into and out of the respiratory system, assessed separately from the oxygenation information supplied by pulse oximetry.

Standard precautions

Minimum infection prevention practices applied to every patient regardless of known infection status, including appropriate barriers, hand hygiene, and safe handling practices.