Demographic and General Information
A total of 164 questionnaires regarding the treatment strategies for the restoration of ETT were completed in five main regions in Saudi Arabia as follows: North 10.4%; South 11.6%; Center 47.5%; West 16.5%; and East 14% (Figure 1
). In total, 109 (66.5%) of the responders were general practitioners, whereas 55 (33.5%) were specialists or consultants. A total of 119 (72.6%) of the responders were men, while 45 (27.4%) were women. The responders’ ages ranged between 25 and 63, and their working experience ranged between 1 and 35 years. Out of the responders, 95 (57.9%) were non-Saudi dentists, whereas 69 (42.1%) were Saudi dentists.
Frequency of Use of Dental Posts in ETT
A total of 161 (98.2%) of the responders utilized posts in the treatment of ETT; however, 3 (1.8%) of them did not use posts with ETT.
Type of Posts
According to the responses, 138 (84.1%) of the responders utilized prefabricated posts in the treatment of ETT, and 26 (15.9%) of them utilized custom-made cast posts and core ETT.
Belief That Every ETT Must Receive a Post
Regarding treatment concepts, 149 (90.9%) of the dentists did not believe that all ETT must receive a post. However, 13 of the dentists (7.9%) believed that every ETT must receive a post and 2 (1.2%) did not know.
Belief That Posts Strengthen ETT
Surprisingly, 136 (82.9%) of the responders believed that the presence of a post would strengthen ETT and therefore decrease the risk of fracture. However, 26 (15.9%) of the responders did not believe that a post would improve the fracture strength of ETT and 2 (1.2%) did not know (Figure 2
The Importance of a Ferrule below the Core Foundation
Approximately, 142 (86.6%) of the participants believed that the presence of a ferrule below the core foundation following post cementation would increase the fracture resistance of ETT. However, 11 (6.7%) of them did not believe that it would improve the fracture resistance of ETT and 11 (6.7%) did not know (Figure 3
The Main Criterion in Choosing between Fiber Posts and Custom-Made Posts? (Which Decision Criteria Led to the Preferred Use of Fiber Posts or Custom-Made Posts and Core System?)
Based on the respondents’ answers, the main criteria that led to the preferred use of fiber posts or custom-made posts and core systems were: The remaining tooth structure (77.4%); ease of use (7.3%); fewer visits (3.7%); cost (1.8%); aesthetic purposes (0.6%); tooth location (anterior or posterior) (2.4%); canal width (2.4%); and others (4.3%).
Type of Prefabricated Posts
Regarding prefabricated post types, 131 (79.9%) of the respondents preferred fiber-reinforced composite posts (FRC), 26 (15.9%) opted for metal-based posts (such as titanium or stainless steel), and 4 (2.4%) favored ceramic-based posts. Around 3 (1.8%) of the respondents stated that they did not use any prefabricated posts (Figure 4
Design of Prefabricated Metal Posts
Concerning the design of metal prefabricated posts, 98 (59.8%) of the respondents preferred a tapered design, 17 (10.4%) preferred a parallel-sided design, 15 (9.1%) chose a screw design, 5 (3%) opted for a combined parallel-sided/tapered design, 2 (1.2%) favored a threaded design, and 1 (0.6%) preferred a split flexible design. Interestingly, 26 (15.9%) of the respondents stated that they did not use prefabricated metal posts.
Type of Custom-Made Post and Core
Regarding the type of custom-made post and core, 103 (62.8%) of the respondents utilized a base-metal custom-made cast post and core. Around 10 (6.1%) of the dentists utilized a titanium custom-made cast post and core, 7 (4.3%) of the respondents utilized a gold custom-made cast post and core, and 6 (3.7%) utilized a zirconia CAD/CAM custom-made post and core. However, 38 (23.2%) of the respondents stated that they did not use a custom-made post and core.
Type of Cement Used for Post Cementation
In terms of the type of cement used, 56 (34.1%) of the respondents preferred dual polymerized adhesive resin cement, 56 (34.1%) opted for self-adhesive resin cement, 21 (12.8%) favored chemically polymerized adhesive resin cement, 16 (9.8%) preferred glass ionomer cement, 14 (8.5%) preferred resin-modified glass ionomer cement, and 1 (0.6%) preferred zinc phosphate cement.
Type of Core Build-Up Material Most Commonly Used with Prefabricated Posts
Regarding the type of core build-up material most commonly used with prefabricated posts, 153 (93.3%) of the respondents preferred resin-based core materials, 9 (5.5%) preferred glass ionomer materials, 1 (0.6%) preferred amalgam, and 1 (0.6%) preferred another material.
Time of Post Insertion
The majority of the respondents (72%) stated that they preferred to prepare the canal for the post during the first week after obturation. However, 22.6% of the respondents reported that they preferred to prepare the post space directly within 24 h after obturation. The rest of the respondents (i.e., 3%) stated that they preferred to prepare the post space after several weeks of obturation.
Should the Tooth (with Post and Core) Be Crowned?
The majority of the surveyed practitioners (95.1%) stated that they crown ETT after treatment with a post and core. Around (4.3%) of the participants would not place a crown on ETT after using a post and core. However, only 0.6% of the surveyed practitioners answered that they did not know.
Crown Material Used over ETT with Post and Core
Approximately 53% of the surveyed participants would place a full ceramic crown as the restoration of choice for ETT with a post and core. However, 46.3% preferred to place a porcelain-fused-to-metal (PFM) crown for ETT with a post and core, and only 0.7% stated that they would place a full metal crown.