In 1993, a new technique was introduced by Dietschi and spreading known as cervical margin relocation (CMR), proximal box elevation (PBE), or Deep margin elevation (DME). This technique's benefit is making the clinical work more straightforward with less failure rate. Our study was designed to assess the knowledge, attitude, and practice of deep-margin elevation procedures among dental interns and general dentists in Saudi Arabia. This cross-sectional study was conducted in Saudi Arabia for six months between July 2022 to August 2023. The questionnaire section's design followed the (KAP) to assess and measure the population's knowledge, attitude, and practice. In this cross-sectional survey. The collected data was exported to "Microsoft Office Excel Software". The statistical analysis was done through the (SPSS) Software. The study included 407 participants, 50.4% of them were females and 49.6% of them were males. 97.3% of study participants were Saudi. 61.9% were medical interns and 38.1% were general dentists. 83.3% of participants had heard of deep margin elevation before and 16.7% didn’t hear of it. 63.6% of participants had good KAP scores, 27.3% had moderate KAP, and 9.1% had low KAP towards deep margin elevation. KAP scores were only associated with participants’ nationality (P= 0.020). In conclusion, participants show moderate knowledge, attitude, and practice scores toward DME. As an alternative to surgical crown lengthening, it is advised that dental professionals implement this approach in their dental clinics.
